Andy,
You should have heard a loud pop as my head removed itself from its former location. The darn set screw was loose. Gave it a quick tighten with my UNBRAKO 3/16 allen and no more movement. And to think I read the adjustment post and it never entered my mind that the problem was the set screw.
Now to modify the hub for the horn contact, the hole for it is to big.
Thanks again