Aha, your the reason why (N3ZC) I couldn't get through, rag chewing with him for an hour
. There are different versions of Slipp-Notts floating around, the two-clamp version for a T-8 against a 1/4"-6061T6 mast slips when hit with 40-60 MPH gusts. If you carefully analyze the two-clamp design you'll understand what is occurring. You can hear a loud "pop" when it slips and no it's not installation error. Email worked the best, I finally got through and the second set of clamps arrived today.
Thanks for the comments - John AB5Q