I found the answer for the eratic arrow flight high. There is a sensitivity adjustment on the " Trap Door" It was not falling away at times. I lightened up the tension on this and my groups have improved dramatically.

I called a pro who is in touch with the makers of the " trap door" that gave me the tip.

I am glad to have this problem solved as I lost or destroyed 6 cxl 250' s in the process of shooting high.