Nowhere that I've read has mentioned this (even in passing), but is it worth using a GCD for NS/HT while Berserk/Incarnation is up? I always try to make sure I'm as close to 0 energy when Berserk/Incarnation ends to get the most benefit out of it, but I always seem to have a bit of energy left over if I use a GCD for HT while Berserk/Incarnation is still up.
Is it a DPS loss to not use the NS/HT?