Yes I do and yes I can!!!
The hydro-pulse plate has the s shaped curve in it, plus the holes are smaller, and there are more of them. It is my favorite seat! It feels like it snakes up and down your spine, and a little more pressure (or so it seems to me) than with the regular moto-massage! The regular moto is good, but the hydro-pulse plate makes it great! IMHO!!!!
I have recommended it highly to anyone who asked or was willing to listen!!!
Does that make sense?