Combat Medic Archive

Im a Master Doc and decided to try M CM for a PvE support toon in groups. It's nice to be able to buff and heal everything including mind, states, and rez. I come in very useful the groups Im in as far as keeping everyone alive but I haven't been too useful in helping to kill things as far as the poisons/diseases. I'm still new to CM so I could be doing things wrong, but here are some of my issues.
First off I'm grouping with people to kill higher end NPC's and creatures.
- I can't do anything vs SBD'd or droids in general, so I just sit back and heal others.
- When grouped with 2 swordsman (or any elite combat ppl) they kill the Acklay in about 30 seconds, and my poisons diseases don't seem to help much if at all. This is also the case with most high level non-droid NPC's. By the time I fire off 3 or so poisons or diseases the creature / NPC is already dead.
I've been trying out some DWB raids and my healing usefulness is great but as far as killing things I dont seem to do much good.
I have a melee alt which I use to kill higher end things without a problem, my plan for this toon is to be support and do high level guild hunts. But if all Im doing is healing then I dont see a big use for CM with Doc. I'm contemplating dropping CM and keeping Doc and possibly adding rifleman or SL, unless I can figure out how to use my poisons / diseases more effectively.

Any input would be appreciated.