Interesting tutorial -- I learned a few tricks.
But the default ACMP sound doesn't seem to be tied to the bass/pad settings of the actual style (it doesn't change under different styles) and tweaking the bass/pad settings in the mixer doesn't change it (and even if it did, I'd still have to reset them back to normal when actually running at tempo with the style normally).
[EDIT] I *did* switch the "STOP ACMP" setting from FIXED to STYLE, so that the bass/pad setting in the mixer would change them, but for the Style I was working with the selected pad voice was a bell sound and didn't sustain, and I'd still have to deal with resetting the bass/pad settings back to normal when ready to actually play "live" with the style.