I never bench bled mine, but I did bleed it quite a bit using engine vacuum and topping it off every few seconds (engine vacuum is quick
). Suffice it to say, there was no air left in my system. I opted for a rebuild kit. The pistons in both the master and slave cylinders were done for.
My pedal is rightly stiff and engagement is low center where I like it. The V6 PP is stiffer than the stock 5SFE, but not as stiff as my ACT 5SFE plate.