I set it to 2 + Cha modifier (min 2), because that was used in the playtest. Given my party included a bard, paladin, and sorcerer, they were able to use far too many. The fighter, barbarian, and rogue had about 3 each, but no one was unhappy with the disparity. The sheer number half the party could use was ridiculous though.What did you increase it to? Were there any other limits?