Very nice. I ended up with M40s rather than M3s but every time I hear M3s I find myself thinking "these are as good as it gets...".

I've been agonizing over trying to find a good place for my "ground floor speakers" (M40s), but since I don't have an actual listening position on the ground floor maybe I'll try setting them up the way you did.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8