Im looking to buy a DA buy end of the day and narrow it down to these too. Quick background, new to polishers. Read the how-to on polishers. Plan on using WG products since its on sale and fall20 savings. I hear both are fool proof. I have read and like the fact that Griots DA is lifetime warranty, customer service is awesome, and more power. Im a little confused though on backing plate and like to know a good brand to buy that won't die on me i.e. break. PC has been around and seems to be the choice among you guys, the pros. i hear now and then parts break or counter weight has some issues. I plan on buying cobra foam pads as well. Any advice or anything else to consider before buying and after buying one of these fine machines? :buffing: