Thought that was already tested... anyways I've always found it rather helpful to get a 3rd character if possibly to do your pulling and possibly any buffing. Even if you don't in order to minimize weird stuff I'll often try something bigger to get close to that pull emnity first. This is nice because you know both test characters are starting off with the same hate and you can do something like stun/flash to get over the pullers hate. With it balanced like that you can test easy. Also pulling is effected by -emnity gear so that can help with lower stuff if you want.
Also thanks for the headsup on the emnity changes.... still haven't caught up with the last ones lol