Hello,
I finaly got a response from the people at Horton, and they say that the recoil dynamics from a crossbow will indeed destroy a "regular" scope. They however did not have an explanation as to the difference of a "crossbow" scope. This is similiar to the claims that a pellet gun will ruin a scope that would otherwise be fine for a centerfire rifle, yet if you use a "pellet gun" scope, all will be fine. Nevertheless, I have since put a red dot aperature on it and it is as accurate as it has ever been. As a sidenote, Robert Gradous, a world class riflesmith who lives near me says that there is no way a crossbow could destroy a good rifle scope. So, my investigation will continue until SOMEONE can explain how a crossbow and pellet gun is different from a regular rifle scope.
Dave