Thanks Rharv, but I am not a fan of Realband tbh - it glitches out too many times for me...in odd unpredictable ways.

If I was going to use RB, I'd use Sonar live with wav files from BIAB.

I am thinking of using BIAB live with vocals as there are sometimes I feel (and the venue warrants it) that simply playing keys/bass and a guitar track is all that is needed. Using BIAB live means it is a snap to do this without needing to re-create wavs or mp3's or anything really. And frozen tracks load in an instant so it's fine for live work.

Just got to bite the bullet and give it a go!