It was "luck" as to why you never had an issue or maybe you have a tiny antenna. --- Rick Karlquist N6RK On 2022-11-08 14:36, Jim W7RY wrote: > I never had an issue with my M2 mast clamp on the Orion, although many have had issues. The clamp had 6 bolts in it holding the mast, and no through bolt. > > Not sure why I never had an issue.