+4x8, Office simulation, RC1 on Brainstorm.
Base character was elec/elec tanker from live, without being rebuilt to take advantage of changes. General build for tanking stuff, not farming. NOT a proc bomb build.
Scrapper and Brute were the exact same power and slots, just replacing AT IOs with the appropriate ones.
Well, scrapper lost two perfect zinger from Power Sink due to not being slottable, but I don't expect that it mattered.
Tanker: 11:11
Brute: 8:41
Scrapper: 11:16
The increased scrapper times were somewhat inflated because I chased mobs I should've waited on; I'm not used to soloing lots of mobs on scrappers.
In all fairness, I don't think elec/elec tank was too affected by these changes due to the weird nature of electric melee (fake chain, fake single with splash).
I will probably try the same with a few others as time permits.