3 or 3.5" Backing Plates on PC 7424XP

**duquephart** · 10-18-2016, 10:10 AM

I'd like to use a smaller pad for those areas (bumpers, etc.) where they would work better. But there seems to be concerns about excessive vibration due to the counterweight being designed for the larger set ups. Can a 3 or 3.5 inch plate be used without issues? What have folks run into in this regard?

**Mike@DedicatedPerfection** · 10-18-2016, 10:14 AM

I would stick with the smaller 3" plate/pad combo on this machine for smaller areas.

I have set up my G110v2 in this manner as well. No issues running this setup.

**Paul A.** · 10-18-2016, 11:02 AM

I have to agree with Mike. In my experience i have found it better to go from a 5" pad to a 3" or 3.5" pad for the tight areas. I have found not much gained from 5" to 4". I also have a 6" counterweight on my PC and haven't experienced any excessive rattle problems. I might run it slightly slower for the small pads but i might be on a plastic bumper anyway. Again, just my opinion here.

**dlc95** · 10-18-2016, 12:24 PM

I use the 3.5", only because Buff and Shine doesn't have much selection for 3" pads. The machine is also less "tippy" with a 4" pad.

**Paul A.** · 10-18-2016, 02:07 PM

Good point, dlc. Yes, tippy is the best word to describe the feeling but controlling the machine around tighter areas is a focus for me. Be mindful of "tippy".

**Kamakaz1961** · 10-18-2016, 02:10 PM

Originally Posted by duquephart

I'd like to use a smaller pad for those areas (bumpers, etc.) where they would work better. But there seems to be concerns about excessive vibration due to the counterweight being designed for the larger set ups. Can a 3 or 3.5 inch plate be used without issues? What have folks run into in this regard?

I have no issues with either 3" or 3.5" BP. I can go all the way to 1" BP as I have my PC7424XP set up that way. As for vibration...I have not experienced that. What I did experience is that the PC performs better with the smaller plates and corrects better.Either choice you choose should be fine.

**Mike@ShineStruck** · 10-18-2016, 02:16 PM

3in bp with 3.5 LC Thin pros

**David at LC Pads** · 10-18-2016, 03:47 PM

Originally Posted by nothingface5384

3in bp with 3.5 LC Thin pros

I might be a little biased but I love this combo too!

**Eldorado2k** · 10-18-2016, 03:54 PM

Originally Posted by David@LakeCountry

I might be a little biased but I love this combo too!

Add me to this list. I recently bought a 6pk. of these 3.5" Thinpros and they seem best equipped for the small setup.

@David@LakeCountry. Are you guys ever planning to sell the HD Orbital Foam Pads in a 6pk/valu pk. here on Autogeek? It would be nice to be able to buy more at 1 time + save a few bucks. Thx.

**duquephart** · 10-19-2016, 01:03 PM

The whole idea for me (as a noob to machine detailing) is, of course, to have the ability to machine polish narrower and harder to get at areas. Which leads me to my next question: Does the whole pad need to contact the surface being polished? In other words, can a 4" pad be used to polish a 3" or smaller strip? Any advice much appreciated. Please forgive me if this has been addressed elsewhere.