When I first starting using biab, I would use the song settings to change RT from rhythm to solo and to mute tracks, etc. at different places in the song. However, I like to hear pick-up notes sometimes which aren't always generated. I then tried starting the solos a measure early, but then that causes other timing problems. I too found it better to generate separate solo tracks and rhythm tracks for the same instr. and exporting to my DAW (Audacity). I can then edit those tracks to come in and go out where I want them as well as change dynamics, etc. The tracks can then be compiled and rendered to one track for my final mix. There are a number of ways to achieve what you want, you just have to experiment and find what works best for you.

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