Nice review Dan, thanks for taking the time to do the testing and report. smile
Sounds oddly similar to my M2/VP150/VP180 findings. wink

So Dan, are you going to be swapping out the IOW VP150 for a permanent IOW M2 center in light of your findings?

M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70