In my somewhat limited experience with it, the M205 works best with some pressure (I know, that's not what the label says).
If you want to use a finishing pad with it, I'd use the newer
Meg's black one; otherwise I find that finishing pads (e.g., LC black) don't really work better than some polishing pads, at least on hard clear.
The only time I do the "virtually no pressure" thing is with *really* light burnishing/jeweling on an already "perfect" finish, and for that I'd use something that finishes out better than M205 anyhow. Unless a finish is already to the point where most would say it can't get any better, I apply pressure.