This is an opinion, after using TC in both Biab & PT over several years now. I have found the TC in Biab renders a cleaner harm(s). It may be my set up, dunno? But, Biab has always given me better TC Harm(s). I usually render the whole enchilada to separate harm tracks and then do a final mixdown in PT or RB. Just an opinion, but thats my story and I am sticking to it !!

Trax