Thank you for your reply's. I had already had my mind set on the PC but now I guess I'll have to look into the Griots. So you don't think I'll have an issues with the Griots, know that I've never used an electric polisher?
I'll try to answer both later questions of yours with one reply so you have some better understanding of both machines which you may not be aware of.
Although I own a PC7424XP and never had any trouble with it, my #1 major dislike is a Rotary Speed Select Dial which has 1/2 speed increments, meaning 2, 2.5, 3, 3.5, 4, 4.5 but no 1/2 increment speed between speed 5 and 6. Why they did this was stupid IMO, because sometimes speed 5 seems inadequate, and speed 6 seems to be going a bit overboard and just too much.
Although I never used the GG6, speed 5 on this machine is probably quite adequate for all correction tasks.
As for warrantee repair or replacement, which I believe Griots Garage probably doesn't monkey around with repair, they just ship you a brand spankin new machine, keep in mind that in probably any case and with any manufacturer, you will ship the machine back to them once you get an RMA# on "your dime". They will then ship you the new machine on theirs.
The latest iteration of the GG6 is probably their best to date. Nice looking machine.
I also have the baby 3" Griots, and more recently did buy the Griots GG15 Boss. The Boss is a very nice looking machine but haven't used it yet to further comment on its abilities.
I'd say as I close, with either machine you'll get great use from either. Tough to ignore the Griots warrantee though, they got you covered if it's 5-6 years or more down the road. If a new machine supercedes the one you have, they send you the latest offering.