As bad as the passives for the Engineer profile are, the drone is godly: thoughts on the engineer pr

The recharge boost and that stun prime is amazing. It rematerialises fairly quickly. 

Other things are not so great. I am only level 17 but I completely specced out of constructs because they don't seem that effective even though most of the passives benefit the turret. Power restoration? Presumably that only applies to Energy Drain? Not sure what else that would apply to. 

However, it does seem that both the Infiltrator Profile AND the Sentinel Profile would be better for a pure tech build, not sure. I cannot seem to let go of the drone though. Thoughts on the best tech profle?

Do you know if the Engineer profile restoration bonuses apply to his passives as well? And nice to have a fellow techy on board, always preferred tech to biotics or even straight up gunplay to biotics.

Some of the bonuses are unclear.  "Power restoration and defense?"  Not exactly sure what that does, to be honest.  I want to see if there's a game manual around somewhere that gives this info.  I THINK this applies to the shields you can get back from Energy Drain, etc, but not exactly sure.

My preferred main setup uses Energy drain, incinerate and concussive shot, with a second profile (once I have the points) for Incinerate, Cryo beam and Turbocharge for the bigger, armor only bullet sponges.  Cryo beam has some great armor debuffs, and Turbocharge turns certain weapons (like my preferred Hornet) into DPS monster bullet hoses.  It may not be as effective as a bio-converter augmented Pirahna, but I view the bio-converter aug to be borderline broken and OP as hell, given the tech passives that restore health when using tech powers.  Thus, I tend not to use it.  

Edit:  Ok, now I need to know where I can find this information  I just located the ME:A "manual" but it's very light on specifics.  It only briefly mentions Profiles, without saying anything about what the various bonuses do.  I'm gonna jump into the game and browse the codex, maybe that's got some info on the subject.

Ok, I found a tweet from Ian Frazier about "Power restoration and defense." It's a % bonus to any defensive bonuses you get from passives, and a bonus to the amount of health/shields you get back from powers and passives.

So any tech passive that gives a boost to damage reduction, etc, get a bonus boost to that amount. Life Support (bonus to health regen cap and health regen amount) also gets a bonus depending on profile. This DOES include Energy Drain, but not ONLY energy drain.