Hey there,
I did run a B60 and 2B-lp for quite a while biamping some Vandersteen 2ci, eventually along with a Bryston crossover.
Loved it for what it was. Did a really nice job, MUCH better than the B60 by itself.
I'm a big fan of Bryston in solid state situations, though my current 'main' speakers don't play well with them. (I know it isn't the amp's fault).
In my consideration, if one Bryston amp sounds good with speakers that are bi-wireable, I would really want to try bi amping them.
YMMV though.
Good luck!
Regards,
DeadFish