stevet & hayless- I haven't used DACP enough to comment on it, but I *hear* it's similar to the PP, though I'd suspect that the PP breaks down finer. Some people have to follow DACP with something milder but I just can't IMAGINE that ever being necessary with PP. I get the feeling that *I* consider PP a bit milder than some other Autopians think it is.
Both the 3M RCs I use (pns 39002 and 05933) are, IMO, MUCH MILDER than the Ultra. The PI-III (05399) especially, is probably a LOT milder than most people would suspect. It's about the same as DACP/PP and will OFTEN leave a ready-to-wax finish.
So the 39002, 05933, DACP, and PP are all probably more similar than different, aggressiveness-wise. Heh heh, someday I'll have to use DACP just so I can accurately compare it to what I DO use.
MOST to LEAST aggressive, I'd put it something like:
1Z Ultra
3M PI-II FCRC (39002)
3M PI-III RC (05933)
DACP
1Z PP
3M PI-III MG
1Z MP