I think it has the same problem the laser rifle did before the patch. I tested it ten to fifteen times vs several enemies. A fully modded laser rifle greatly outperformed Tri beam laser, except it used 1MF per shot, and has greater weapon health. I think the problem lies with criticals. Whenever i scored a critical, the laser rifle did huge amount of damage, but tribeam laser didnt. My character has 25% critical chance. With x1.5 of laser and tri beam, it increases ofc. I think the critical hits of tri beam laser need to be fixed in the next patch.