Interesting discovery this evening which may be part of the problem. The WB appeared crocked, so i applied medium pressure to it and it moved. I straightened it up and the arrow appeared better aligned, though I was simply eye balling it. I need to take it back for measurements. The only strange thing is, the problem has varied with the nock being too high, too low and too high again. The WB is not loose enough that I would expect it to have moved that much.

Anyway, the WB must be part of the problem so i will certainly start there. Should they have used Lock Tight when installing the sight and WB? I asked, but the pro does not like the product and said it isn't necessary. I will keep you all posted on my progress. I appreciate the feedback so far.