DonM..... if you hit the Break/Mute, then DURING the break you hit a fill button, you get your 'pickup' into the next bar you want, with the advantage that YOU choose when it happens, not preprogrammed into the break, and if you DO want a whole bar of silence, no problem!
The only disadvantage is that, instead of it being just a drum pickup, the whole band comes in on the pickup......
I have a thread at the Danish site, on the New Functionality forum, asking Roland to change to a 'drums only' on a fill DURING a Break/Mute, which would make it perfect..... Add your name to the idea, and maybe Roland will see the light....
It's not as good as the Yamaha Break/Fill concept, but YOU are a bit more in control (for instance, YOU get to choose which fill is the 'pickup', so more variety), so for me it's a pick(up!).
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An arranger is just a tool. What matters is what you build with it..!