Quote Originally Posted by ZedxKayn View Post
Yeah, in pre-pull overhealing is fine because the GCD spent on casting the heal couldn't have been spent on DPSing anyways, so as long as it heals about anything, it's not a waste. It's very unlikely for a tank to not have his health nibbled at during a pull, even with benison, if regen gives even just a bit of health back, then it wasn't a poor choice to cast it. If the healer gets some aggro for a bit, it's fine, by the end of the pull they're expected to be standing in middle of the mobs close to the tank for their AoE (or CU for AST) so the tank doesn't need to go out of his way to get aggro back anyways.

Personally I definitely see a difference in the tank's health when the pull stops between a pre-pull regen and none, and the former is a lot more comfy.
It's not a huge deal, but one bad thing about Regen during a pull is that it makes it more difficult to grab everything while pulling.

Once I get close to a group of enemies I get proximity aggro, which means they all converge on me in an organized fashion to eat the AoE. If I have regen on, however, nothing converges on me, instead once I'm in proximity everything runs past me. This means spread out enemies don't gather towards me; a close by enemy will have run past me by the time a far away enemy is in range; etc.