Hi Zuki,
they sure do.
We've also got 4 fills now, which is a lot better than having just the 2. I luv the fact that the fills can be set to Auto, so they act like the Yammies ie hit a variation & you get the fill before the variation starts playing, or you can press a fill button and it acts as a fill in.. Or when Auto is set to OFF, you just use the same way as PA800.

I didn't think they could improve much on the PA800 ( I was very happy with it),but with PA3X, I'm REALLY happy. haahaa