Hi receder!
It´s the same workflow here, with some exceptions:
My main DAW is Cubase and I use BiaB more or less as a "sound source", may it be midi or real tracks.
All midis will be converted into audio in Cubase (most likely through NI Kontakt)
The only Midi I keep until the very end is DRUMS. I´d like to have the option to add or alter a crash cymbal or a break even in a very late stage.
To be honest: Although I´m a guitar player (my band mates call me a guitar owner) I have to admit that I sometimes leave the BiaB real guitars in the final mix. Especially when it comes to Solo guitars.
In this special case I very often let BiaB regenerate the Solo over and over again. I import all these tracks into Cubase, snip it into chunks and re-combine them to a solo to my taste.

regards
SC