Just got done using them for the first time. Did half a front fender and its day and night difference. Only problem i seem to be having is they seem to be pretty jumpy, kept it at about 1-1.5 rpm.
I find those 6" pads are geared more towards orbitals. I like the lake country ones thats are 7.5" for the rotary, lose the jumpyness that I experienced as well.