Nock high won't go away.

[McDave]

Originally posted by Mint:

I put one of trap's feather rests on the bow and the arrows flew like bullets! Do yourself a favor and try it with a feather rest.

That seems like it would be a good compromise between shooting off the shelf and off an elevated rest if nock high can't be eliminated when shooting off the shelf.  I'll have to remember that if I have that problem again.