John,
FWIW I've always leaned toward PT for Live, RB for writing.
Less overhead = more stable.
Plus I don't want that pesky 'Initializing Accompaniment' message holding things up .. for yet another reason.

I've used PT to run live click, drum triggers, synths, guitar patch changes (multiple guitars), lights, vocal processor changes, etc, all in the same song .. while recording it in PT also as a live mix.
It can be very powerful and ya can't do that with WAV or MP3.
So I get it (I think).


Make your sound your own!
.. I do not work here, but the benefits are still awesome