So I took a break from my Sage and am leveling a healing Merc on a friend's server. So far I'm loving the Merc. In some ways it's better than my Sage (blasphemy! Yes it's true!). The only thing right now is heat management but I'm sure I'll get better at that. But I have some build questions. I've seen a lot of PvE builds and guides, and "hybrid" PvP builds, but not much in the way of pure heal spec PvP builds.

From what I can tell, there are too many good skills and I can't decide what talents to use and which I can get rid of. The entire healing tree looks good, and then so does the entire first tier of Arsenal plus Upgraded Arsenal and System Calibrations and Advanced Targeting in Pyrotech. I've also seen builds that included Custom Enviro Suit and Muzzle fluting which if I had room I'd take. So what are some builds that you guys use for PvP healing? What reasons do you have for cutting out certain talents and taking others?