Hi Dave,
Got a chance to run this comparison yesterday. Tried to take pics but didn`t get any that showed anything worthwhile.
Flex 3401 w/ gray LC Force cutting pad, speed 5, 4 passes.
Rupes LHR15 Mk 2 with Kamikaze Beast backing plate, GG FCC, white Fast Correcting foam pad, speed 4.5, 6...