This is with a solo instrument playing identical instantly to the track in Biab main app all in Sforzando, no wav rendering and no waiting.
It plays the overlapping notes where one section starts to play while the previous one is ending.
I could get it to read the Biab WAVInstructions create the sfz, load it into Sforzando before bbw4 has finished rendering, BUT I don't want to do anymore scripts, I would rather see PG create this in the Plugin as it just works also easy.

Watch: https://www.dropbox.com/s/9vt3u8plv7w61hx/BB-Track-Data-To-SFZ-Solo-Guitar.mp4?dl=0