Also I will add using ride the lightning and mist form kills them. I assume anything that locks your skill bar causes them to die. This does not effectthe greater element, lesser on. Getting on a mount kills them too, and this effects both.
I agree with most of the suggested changes. I don't agree with the turret changes (I think it should be done another way) or switching short fuse with Bunker down. Bombs are explosives so short fuse should remain in explosives. I also think giving skill #2 on the bomb kit 2 stacks of burning per pulse is too overpowered. Instead the burning duration should be increased.Anet should hire you to do balances patches!