Don't hesitate if the 31 has experience and is a titan bubblebro. The bubble is super convenient. Oh and if they have gjalla or not haha. I'm a 32 warlock, 31 Titan and hunter. Killed him on warlock then joined another group with my titan. It was If nothing was different. Experience goes a long way is all I'm saying. We killed him and I finally got a primary :) the scout lol