I sit 8 feet away from the VP150 v2. It's just "ok". If I move 15" to the left or right on my couch, it sounds like someone threw a (much heavier) carpet over it. I can turn the center gain up 10dB and it still doesn't help. 15" is less than 10 degrees in my set-up.

How far is the VP150 from your MLP, Craig?

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated