Right click on your portrait and select group and then reset all active instances.

You can't for HM operations in LFG,so no there is not a reward for them.

I have noticed that backhand smash seems to have a 180 degree frontal arc with no range. I thought that the person behind Toth was accidently crossing his center dot, but they are telling me they standing almost at max melee range.

Yes, I am very sure that melee is getting the backhand smash. We have had several discussions about it. I know the stomp during berserk causes a lot of damage but the backhand smash is killing the person with the yellow circle. That is what is coming up on the killing blow and people are also getting the knockback from it. We just heal through in SM, but it is too much to handle in HM.

We are running Toth and Zorn 16 HM and having an issue that is causing us serious trouble. We are having melee get targeted with backhand smash even though they are standing directly behind Toth. It is a big problem when the person with the yellow circle gets targeted because it will usually kill the target and if it doesn't it puts a lot of stress on our already overtaxed healers. The berserk phase is not the time to be dealing with huge spike damage. If anyone knows what is causing this or how to prevent it, I would appreciate your help with an explanation to prevent it. This is the tool tip I found on Khira's Blog which has helped a little but not much. "Backhand Smash – A 2 second knockdown. Seems to hit anyone in front of Toth."