Okay.. at some point I apparently got confused over one key engineer issue: the fact that the "MANA Turret" (the cert track) and the "ACE Turret" (Adaptive Construction Engine, a hold over name from PS1. This is what the turret is actually CALLED in your inventory.) were in fact one and the same thing. I just invested 50 points in the MANA Turret, hoping that it was some sort of upgrade, specifically since it mentions it having a "bubble shield" to protect the user. Well, in my feeble little brain this sounded completely different from the starter turret... specifically because the starter turret does not have a "bubble shield". It's got a pair of glorified wing-mirrors that do crap-all. So. I wasted 50 certification points... and all because SOE refuses to consistently name stuff (OR to have some form of basic-training area / method where you can TRY cert point investments BEFORE buying them). Crumbs.