@musocity: You mentioned "best also to disable auto crossfade so notes or hits can ring out over other riffs:"

I agree, it is very clear when, for example, there is a hit on a crash cymbal. But on the other hand having no fades sometimes the way the clips are cut they produce audible "clicks". They are there in the cut points, it is the same using your scripts or BiaB VST in Reaper mode (it makes sense that the behaviour is the same).

This does not happen using normal full rendering in either BiaB standalone or BiaB VST "not in Reaper mode". It is feasible to post-edit the clips to add the required fades (not in every clip!), but this complicates workflow.

Do you / anybody know if there is an option in Reaper to avoid the cross-fades (so the cymbal ringing can sound at the same time as the next HiHat hit, so both takes are overlapping) and at the same time force fades in all clips (say 10ms) so that the "clicks" are a lot less audible? I mean, fade in/out everywhere but allow overlapping takes to keep long releases?