Not to hijak but Wayne when you say run the mains wide open what exactly does that mean? On my AVR I have my current mains cut off at 60hz even though Audessy set them at 40hz because I was told on another forum or read somewhere that 60 hz and lower is better left to the subs and thus gives your amp some head room if I am not mistaken.
Does this not necessarily pertain to me as I use an AVR or is there something I could try changing in my settings? This post has me even more excited about finally getting my 3 2 pis done for my mains and center as I really had no idea that your mains could aid as bass sources.
I was pointed in your direction on a forum as I was told speakers such as what you have designed will make my HT more dynamic.