Yes RPM.. You want to watch the over hang temps when buffing the strake below it. The edge of the pad can create hot spots if going at to fast an RPM..
Thanks, that's what I thought you meant.
Per another tipster here, I will also likely use smaller backing plate and pads on the lapstrake areas. There are 2 3/4" plates that use 4" pads and a 3 3/4" plate that uses 4" or 5" pads from Lake Country. The tipster thought that the smaller pads would have less throw. Either of these will work on the Makita (per AutoGeek.net).
My only concern is that my motion will be nearly all horizontal (not much room on the lapstrake to do any vertical motion).
And, my gratitude again!