Thanks for the info. That would certainly be quite something, and we still have at least two spare (hopefully). 3 is too few for me. I haven't gotten good results without Astarion, but I've also had tools pile up in my inventory like crazy, haha. It clearly does account for people killing him.
Not to state the obvious, but 3 is really restrictive. I can survive with adjusting my party, it's not that. It's just that it strongly encourages pigeonholing player behavior. Got one good or evil companion among two opposite? Leave them at home lest they heavily disapprove too often. And leave. Price is being a man/woman down. Catch 22 🫠
So, you need a group that roughly approves of the same actions, or you'll do a lot of reloading. Or have the approval neither here nor there -- get a bad ending for them/be locked out of their quest? That's. That's bothersome. To say the least...
