Believe me I'm not knocking any newcomer to the wonderful world of the rotary (until I found this place it was always just a buffer).... on the contrair I encourage it. (I make more money fixin the #@$%-ups heheehe). Believe me, I too had to learn somewhere -- and if you could've seen the damage I did to a mahogany kris-craft hull when I was learnin how to use the sander long before I ever even heard about detailin you're chin woulda dropped. Years later, lots of practice, many a burned edges, blown apart foam pads, tweaked fingers, ruined rubbers, three or four oops's and lots of passing on to others the wisdom of the trade... I can make black look like glass. However, I also confess that when it comes to doin' an interior -- I can do em -- but George Gershwin I'm not.