If you're using BMR Monitors as surround speakers, what are your front left & right speakers? At about $1,700 per pair, those are very expensive surround speakers. I've heard them, and I think they're among the best speakers I've ever heard – tower or bookshelf – regardless of price.
I also had to ask because you also mentioned your reluctance to spring for pricey bi-wire cables to use for those speakers. They're your speakers, and you can do as you wish with them, but I personally think it's a shame to not use them as front speakers.