Originally Posted by Good_Times
From my use of M105 both the old and new versions and M100 I give the nod to M100 for cut and working time. IMO. Need to add a few to the line-up like 66 and D300. Meguiars does have a lot of good solid compounds.
I haven't done any direct testing, but what I was saying is what I was told in a class by Jason Rose at Autogeek's Detail Fest.