Griot's G9 observation...

[WRAPT C5Z06]

From the videos I've seen, the polisher seems to be MUCH better balanced with their 6" backing plate. The 5' backing plate looks to really wobble.

[Sharply Dressed]

Thanks for that tip. Just saw this in the latest GG sales magazine I got in the mail. Nice looking machine.

[1 NC Guy]

I've got one with a 5" backing plate and I have no wobble. Have had it maybe 3 weeks now and have had no problems with it.
Great machine.

[Hermes1]

Interesting observation on the 5". I have the 6" on my G9 which is coming in handy on my 35' 5th wheel I am currently working on, but my next projects will be my wife's car and my truck where I suspect the 5" might be the better choice. Right now I am on the fence whether to go ahead with the 6" on the vehicles, or get the 5". Hoping to read more on the 5" from others who have taken the plunge.

[john b]

I have read about about vibration issues but its hard to say unless a person has actually used the machine

[Mike lambert]

I’ve had mine quite a while, 5 inch only. You’ll have no issues at all. I put it up against any 15 da out there!

[oneheadlite]

Interesting. I can’t say from my time using my G9 (complete 2 step on a Q5) that I thought the vibration was excessive/notably higher with the 5” plate on it.

Throughout the course of the detail, I changed pads/formats quite a bit (all with Griot’s pads). I used 5.5” BOSS pads, “regular” pads, and BOSS Microfiber (red foam version) pads. I also used 6.5” regular and BOSS pads.

One observation that I did have was that there was seemingly no drawback to using the 6.5” thick pads. The machine never broke a sweat maintaining pad rotation (usually around speed 4.5), and actually maintained rotation better in the really contoured area where the side of the hood meets the front fenders than with the 5.5” BOSS pads. (I meant to take a picture - if I held my small handheld Milwaukee Rover stick light about 8 inches away, the contours made the light reflection S-shaped. Now I’ve gotta get a picture of it...)

Balanced is a great word for the machine though - with any pad setup the weight distribution of the machine is such that it’s super easy to find a comfortable hold on it while maintaining pressure against the paint.

I’ll be honest and say that at first it wasn’t as noticeable a difference in vibration level (IE: Less) from the GG6, but then I realized I was gripping the machine much tighter than I needed to while getting accustomed to it. Once I softened up it did strike me as smoother. You can also run it at a lower speed while still maintaining rotation which is nice.

Disclaimer I feel I always need to throw in - I’m no pro, so I don’t have countless hours with various tools; these are just my thoughts from my time with the GG6 and G9. I’ll be pulling it off the shelf again soon to start correcting my DD, which I’m really looking forward to.

[Wknd Dtlr]

Interesting. I can’t say from my time using my G9 (complete 2 step on a Q5) that I thought the vibration was excessive/notably higher with the 5” plate on it.

Throughout the course of the detail, I changed pads/formats quite a bit (all with Griot’s pads). I used 5.5” BOSS pads, “regular” pads, and BOSS Microfiber (red foam version) pads. I also used 6.5” regular and BOSS pads.

One observation that I did have was that there was seemingly no drawback to using the 6.5” thick pads. The machine never broke a sweat maintaining pad rotation (usually around speed 4.5), and actually maintained rotation better in the really contoured area where the side of the hood meets the front fenders than with the 5.5” BOSS pads. (I meant to take a picture - if I held my small handheld Milwaukee Rover stick light about 8 inches away, the contours made the light reflection S-shaped. Now I’ve gotta get a picture of it...)

Balanced is a great word for the machine though - with any pad setup the weight distribution of the machine is such that it’s super easy to find a comfortable hold on it while maintaining pressure against the paint.

I’ll be honest and say that at first it wasn’t as noticeable a difference in vibration level (IE: Less) from the GG6, but then I realized I was gripping the machine much tighter than I needed to while getting accustomed to it. Once I softened up it did strike me as smoother. You can also run it at a lower speed while still maintaining rotation which is nice.

Disclaimer I feel I always need to throw in - I’m no pro, so I don’t have countless hours with various tools; these are just my thoughts from my time with the GG6 and G9. I’ll be pulling it off the shelf again soon to start correcting my DD, which I’m really looking forward to.
Interesting you should mention that. Just got my G9 last weekend. I used Uro-fiber pads in both 5" and 6". I used the 6" first, then 5" and it sure seemed like the 6" did rotate better when up against a contoured area, but I decided it was just faulty perception due to not having enough run time with it. I thought it was my imagination so I'm glad to see you had the same results and I'm not losing my mind!

BTW, using Blackfire One Step with Uro-fiber pads was a killer one-step deal. I used it on my son's 2014 dark gray Malibu and the minor correction and gloss was amazing. I was in an extreme hurry so I quickly buzzed around the whole car only making two passes and wiping it off after I was all done. In my opinion, it finished out nicer than my long throw 21 using the same pad and product. Not sure about this setup for black paint but everything else it works great.

So far, I'm very pleased with this G9. ( and thanks to Mike Lambert for answering my 1 million questions about this machine a few weeks ago!)

[oneheadlite]

... . I thought it was my imagination so I'm glad to see you had the same results and I'm not losing my mind!
...

That's funny, because I was also wondering if I was crazy. :laughing:

When I did my wife's car, it was a bit of a jam session to fit getting the whole car done in a short (for me) time span, I'm looking forward to taking my time doing my car. I'll be able to play a little more and really hone in on how different combos work.

[Loach]

I haven't noticed any significant difference in vibration from my 6" backing plate and pads compared to the 5" backing plate, both of which are the G9 designated backing plates for the polisher. I would say compared to my Rupes MK III, Chechnya S15, and Maxshine M15, they do feel better balanced with less vibration in the polishing action compared to my G9, especially at speeds 4-6. The G9 isn't excessively unbalanced, but in my opinion there's some room for improvement that they'll most likely implement over to the next gen Boss polishers. The G9 is still a clear upgrade to the GG6 and I'm happy with its performance for the price.

[AZpolisher15]

I’m curious as to why griots would promote (sell) the new polisher as a 6” when we’ve been told for years that a 5” backing plate with 5.5” pads is better. Why does Griots do this when the first thing everyone does is buy a smaller backing plate and smaller pads?

I’m not criticizing at all. Genuinely curious.

[Rsurfer]

I’m curious as to why griots would promote (sell) the new polisher as a 6” when we’ve been told for years that a 5” backing plate with 5.5” pads is better. Why does Griots do this when the first thing everyone does is buy a smaller backing plate and smaller pads?

I’m not criticizing at all. Genuinely curious.

Maybe some are jumping the gun by comparing the G9 to to other ROP including the GG6. Most run better with a smaller bp/pads.

Some are saying the 6" set up on the G9 runs smoother and will not stop spinning on curves.

[Mike lambert]

It’s meant to make it a bit easier for beginners.

[Reuben Brumby]

From the videos I've seen, the polisher seems to be MUCH better balanced with their 6" backing plate. The 5' backing plate looks to really wobble.I have 6 and 5 inch plates, I haven't noticed any wobble at all!


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[WRAPT C5Z06]

I put it up against any 15 da out there!
Not sure how could could say this? Based on throw alone, the 15mm will out cut the G9. It also look like the G9 stalls easily on curves. Take a look at auto detailing podcast review of the G9 on YouTube.


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