In BG1 and 2 I played mostly with 3 custom and 3 pre-made...Imoen, Jaheira.
This time I may play with 2 custom and 2 origin characters at a time.
besides the main character, I plan to build a hireling to replace Astarion as main Scout/Rogue/Archer...but Astarion will get his minutes too.
I plan to keep changing the line=up..so to speak.. according to story, maybe used spells, etc.