You should consider modifying the xovers in the Maggies to allow biamping. Pretty simple procedure, you can (should) exchange components with higher quality caps/coils/resistors, and they'll sound (much) better than running bridged amps into mono. You'll need another matching set of speaker cables of course. This is from my experience with MMGs and Hafler DH-200s wih the bridged option operable with a toggle switch so it made for easy comparisons. As a test, when you have your amps bridged and hooked up, and have enjoyed the new bass and 'weight', pay attention to the distortion and clarity in the mids and highs and see if you find them lacking. If not, you're good to go! If so, see above. Sounds like you're having fun, keep that going!