Don't know why anyone hasn't noticed... but most arrangers nowadays have AUTO-FILL. So you get the fill when you go from one Var to another. You aren't even pressing any buttons for fills, they just happen!

But, as I said... the fill for V4-3 doesn't work as well when asked to go from V4-1. All I would like to see is more fills to make these transitions natural. You wouldn't need any more buttons than you do now.

Anyway, I don't use the buttons. Vars 1-4 are on my FC-7. My hands got better things to do than push buttons!