Hey ScottYee -

I am not sure you got a good answer to your question regarding the Pa1XPro Fills.

There are two Fills per Style, and one "Break". The break is not always just empty, it may have a drum thing or a pick-up drum hit. Fill 1, Fill 2 and Break each have an individual button. You can make a variety of things happen automatically when you hit a Fill - it can advance to the next Style Variation, Go directly to a certain Style Variation, alternate back & Forth between a pair of Style Variations - this can be set for each Fill button in Each Style - very flexible.

One other thing I want to mention about the Pa1XPro Fills - you can select them instantly in your performance - , and the fill will play for the remaining number of beats in the bar. When I played the PSR3000, where each fill button is tied to a particular Style Variation, it always waits to the top of the measure to do the fill - not very spontaneous and somewhat musically limiting - in my opinion.