So here's another question about drell that I hope won't be too stupid.
I've recently tried DAI, the last of the three frog brothers that I haven't deployed yet and immediately fell in love with him. I imagine my comrades on field hate me quite a lot because of it, since I seem to be blowing Recon Mine quite often, but since he often has to carry their sorry asses to extraction, they don't really get to complain 
I run him with Black Widow and sans Homing Grenades. The rest of the build seems pretty straightforward, except for one part... passives, fourth rank. I always go with weapon damage, but I'm wondering if power damage might also be a good choice. Granted, RM is usually enough to kill most mooks in one cast and those 15% won't make much difference on bosses, but it makes me wonder... is it worth taking over the weapon damage... ever?