I can only answer the third question. Yes. Assuming they work at all.
STO Forum member since before February 2010.
STO Academy's excellent skill planner here: Link
I actually avoid success entirely. It doesn't get me what I want, and the consequences for failure are slim. -- markhawman
Is the synchronic proton rifle good against non devidians or should i scrap it?
Does the creative trait affect eng heals like shield recharge and quick fix?
Do the efficiency and leadership/teamwork traits stack if i have multie boffs with it? (im a human eng with the L/S trait)
The Synchonic Protol Rifle is a good weapon. It's scales with you level. And it can hit hard on fairly closed space groups as it will chain from target to nearby target. And in a lot of cases you get flanking bonuses for the additional targets.