I'll add one comment: When you hook them, make sure that the pin is fully seated. If there is tension on the snap when you close it, sometimes it seems locked, but it is not. When the tension comes off, the snap can release. I always pull the trace/pole strap to make sure that first, there is no strain on the snap, and second, that the pin is firmly seated in the reciever. More exciting when the pole straps let go then the traces, but it is still annoying. Sterling ps- put a new four together on Sunday, went great, had a blast. _________________________________________________________ To Unsubscribe, change to Digest or Vacation mode go to: http://www.drivingpairs.com/dpmem.html `````````````````````````````````````````````````````````