How's this?GMTA on the CAB M+. I've been using the CabZone X but it has some quirks I don't like. But its usability is high (three simple knobs).
I think most bass amps if you're modeling are PP, and for me if you got 6L6 (including maybe 7027A ...) and 6550 variants, KT88, and EL34 you'd cover most of the range for bass players. This is the one thing the CabZone X got right is the variants sans the 7027A which is in amps like the B-25B and the B-15S.