Originally Posted by eyost
That was what I thought. I wonder why they include 6.5" pads with the set?
They always do. Why? Who knows. You can use 6.5" pads. The important thing is to keep the pad rotating if your doing correction. Even though 5.5" pads are only an inch "smaller"; it's just easier to keep the pad rotating with them. If your using it to apply a sealant, 6.5" are fine. If you already have the 6.5" pads you may as well use them to start.
Just do a test spot on the hood and make sure you are doing whatever you came to do. Repeat along the whole car. This is very important. Nothing is more frustrating than to buff out a whole car and see whatever defects you are trying to remove still there. It will make you want to throw your PC and pads straight in the garbage.
That was the problem I had when I first started. Just watch Mikes videos, prime your pad to start, use a slow a speed (maybe slightly faster than an inch per second), about 20 lbs of downward pressure, and keep the pad rotating and you will succeed regardless of what brand of pad. Don't be afraid to run the PC at speeds 5, 5.5, or 6 if the pad is bogging down and not rotating.
Also, change up your pads frequently, after every panel or two. If not, they get saturated with spent product and abraded paint and cut less effectively and heat up faster. If you don't have many pads, you can clean and rinse them, then quickly dry them with the aid of a fan. Also clean you pads "on the fly" after each section pass with a terry towel.
I use the LC Smart CCS pads and the Hydrotech pads. But, IMHO the brand or model doesn't matter a lot. There are some differences when you start to get into open and closed cell foam and absorption of product - but either will do the job.