So I have a rather strange situation. I'm playing co-op with a friend and I'm finding that my rogue (lvl 12 scoundrel/poly build) is beginning to get far too strong, to the point where I'm secretly trying to find ways not to kill things too quickly so that my friend is still able to feel like he's contributing to the fight.

Has anyone also found themselves in a similar situation with their own rogues (or even other classes)? Have you done anything to decrease your character's power, short of simply using lower damage weapons/skills?