I disagree that they do not work with a
PC...Menz has a pic of them doing correction on a line with a air powered DA polisher..and also one on Youtube...I myself use it with a
PC with 5 and 4 inch pads and it works fine...tried it with the flex and works fine....
yes they work quicker with a rotary...but thats the nature of the machine...but alot of
PC designed polishes also take 2-4 rounds with it to get the correction done...menzerna designed a 5" pad to be used on a
PC for there polishes...the size makes a difference on a
PC...so I believe menzerna uses the 5" pad because its the most effective on a DA machine for thier polishes....
AL