Slightly concerned about mismatching my front speakers if auxinput thinks this is critical for home cinema, whilst music quality is a priority I'm not sure if I would want to sacrifice my home cinema quality too much. Of course... that does justify upgrading the center to a Silver C350 in the future :) I assumed that better front L/R would of improved the home cinema experience, not jeopardize it but it does make sense that the same model speakers work better together. Either way it would sound better then my current set up for home cinema and music would sound even better then with the Bronze 6's.
I sat and played around with my receiver settings for an hour or so today... what a big difference a couple of tweaks can make. The YPAO doesn't work too well for me, it turned my right speaker down so much the left was completely dominant. Whatever it done to the equalizer however appears to of improved the home cinema sound.
I plan to wall mount my TV one day so I can move the center speaker onto my TV unit so it is closer to ear level and more center to the TV. That will probably make a big difference.
Glad to hear your a fan of Monitor Audio @erik_squires , in my opinion the they are the best looking and as I'm British I try to buy British where I can.