A better PvP solution with a homogeneous team is mouse turning all the accounts. (Caster)

This was a huge problem when I stared boxing... turning. Melee would swam a lot faster than I could keyboard turn. I wanted my mouse back...

Also the best keys I have found to break follow are turn keys. They break the follow, but NOT a cast. See a DK running toward you and don't want your casters following your main for the DeathGrip, just tap turn. You can even set it up to send the key for a fraction of a second (Cant notice the turn because it's so small, but still breaks follow).