JC, there is NOTHING 'random' in choosing to trigger a fill on the 'two' or the 'three'...

It's what most other arrangers handle with no problems, and a major part of using an arranger. Are you honestly trying to tell us that in 25 years of playing arrangers, you've NEVER wanted to play a pickup or half-fill..?

Limit yourself to ONLY being able to do what the arranger will let you, and your musical choices go down...

'Naive'? Apparently not... But deliberately choosing to only use a fraction of the arranger's potential (at least in regard to fills)? How would YOU describe it, then?