Heh heh, and *I* almost *always* use the PC/Cyclo to apply paste waxes! I've used it for SG, too, but it's sorta tough to get a nice, thin layer that way.
Anything that can be used by hand, I'll consider using a PC/Cyclo.
About the only products I don't use with the PC are compounds that require the heat/speed of a rotary to break down correctly- stuff like Meg's #2 and anything more aggressive than that. I'm even a little wary of using 1Z Ultra with the PC, I like it a lot better with a rotary, just seems like a happier combo.