Yea ive got g3 dirty drags in at the moment...
Ive not been playing long so i was worried about the thermal vents and not hitting my target...
With my beam setup at the moment ive not had any overheating problems even taking on 3 wing deadly/elites
It's trial and error I find, whatever works for you. I engineered the vent beams whilst practicing with rails and a G5DD and needing to keep the heat down, I kept them ever since as I like the red colour.
For BH'ing I stick the beams and KWS in the first slot so I can scan whilst taking out shields, then switch to second group adding the MC to the lasers and whatever fun weps I have as the secondary's, nice simple two group setup.