What if I managed to drop a Tyken's Rift on a Gravity Well to Drain ALL the things? That might make me consider dropping some skill points into particle generators, unless the damage is just too little to matter.
You can't. Global cooldowns conflict. If you have a friend though, one could do GW and one TR, but alone you can't. And the damage is more a 'nice extra' unless you heavily spec into it and reduce your drain effectiveness.
I'm also curious what the consensus is about Aux Power to Structural. I chose Engineering Team because of the hull heal, when (1 copy of) Hazard Emitters just couldn't keep up. Other concerns?
Nice thing about Aux2Struc is the mere 15 second cooldown compared to ET's 30. When you're running a ship that runs high aux, like say a science ship, it will heal for as much as ET but twice as often. And boost your hull resistance besides. Very popular that way.