I watched the Henry video and the Doobie backing - thanks.

Henry's system is, more or less, what I do when I'm working from a Midi file...something I do very occasionally when doing a close style copy.
HOWEVER it does, hugely, depend on the quality of the midi writing.

When auditioning the real tracks in the style he opted for Henry was listening to both the midi & RD tracks together...then said the drums were busy. Well, if they aren't identical they would sound "busy". Perhaps this was an error and not his usual process.
It's probably problematic for new users to hear the drums being referred to as the melody as well but these are small things in the larger scheme.
I did learn about splitting the midi though...pity that's the part that BIAB is causing grief with at present.

More "work arounds" that, in some ways, reinforce my OP.
BIAB is pretty flexible and being able to track some stuff expands the potential enormously as well as removing some of the blandness that seems to haunt styles.

Cheers
rayc
"What's so funny about peace, love & understanding?" - N.Lowe