I posted this on another thread in this forum:
Heal
For my 'heal' spec, I take WIS down to recast and put 8 in there and that's as far as I go. I keep STR line because I like the attack speed, the chance to avoid and AoE and the AoE immunity that my dog gets because even if I'm heal specced, I can still put up good DPS numbers. You would be surprised sometimes to see how much DPS your dog really does for you.
DPS
For my DPS Spec, I stay STR because DPS is always higher is you can keep your dog alive. I drop Coagulate in STA and add more DA chance while taking a bit away from fast curing. ( I left 5 in there because I still like to be able to cure fast). I also drop what I have in WIS and go full AGI for the 100% crit and DA increase proc-buff.
Mystic Tree
My mystic tree always stays the same. I find it useless to go the rez line since dirges, necros and pallies are the ones who are assigned rez duties (at least in our guild) so I keep the CAs all the time. This way, even without 100% crit and more DA from AGI line in heal spec, I can still put up some decent numbers.