Subwoofer Polirity

I have a Rogue Metis preamp and per Bill at Rogue I flip the polirity at my speakers. I've added a subwoofer and I'm running it the same inverted. Was wondering would it be ok to try running the sub with normal polirity and the main speakers inverted? Just to see it how it effected the sound of the sub. My mains inverted have less bass and better midrange and high end. Just wondering if I would get better bass if ran with normal polirity.