I figured my freezes out - I had the P1/P2 phrases for vocals marked on A10 and Bflat 10, not A9 and B9. Even though I took piano for 16 years, I somehow overlooked that A9 and Bflat9 are BELOW C9, not above it, ha.
So now it works great!
Again, thanks for your fine work on this. Just a couple...