Healing wise i got 2 suggestions:
1.
As some people have already suggested before it would be nice to be able to put Trauma Probe on multiple targets (2 would in my opinion already suffice)
2.
Second one would be Bacta Infusion, it is a good ability because its free and instant but i think its underperforming in comparison to the other two healing classes top tier skilltree ability,.
When i parse it usually only makes up around 3-5% of total heals during a battle
Torparse Link (Heals Given Broken Down by Action Charted by Percentage)
For it being a top tier talent thats really worth it, i would add an ammo cost to it, and make it heal for alot more than it does at the moment
DPS WIse:
I would suggest that the Skill "Combat Shield" should be put in a position where the DPS specs can use it, since the biggest veto against the tree gunnery in pvp is being able to be interrupted and basicly getting shutdown completly in Arenas.