I think i am leaning towards the Ziegler i did try calling Alan Rhone today believe that Irwin is the man to talk to but he is not in till next Wednesday.
As he will tell me the best height for my s&b.
But just trying to get the best feedback from you chaps.
The Ziegler contra mount is just a way to get a scope with a large objective bell end!! to be removable and still sit low enough to the gun.