+1 on Jockeys' vids. Also, it took my face more than a couple shaves just to get used to the new way of shaving. I had some bad burn until my face got used to it.

As far as pressure is concerned, I think of it like this: I'm only using enough pressure to wipe off the lather. I sort of picture straight shaving as using the blade to wipe off the lather, and so that's all the pressure I put on it, i.e. little to none. Its kinda hard to describe, but I hope that helps.