I switched to solid EPDM tensioners I made from Annapolis Performance Sailing (APS). They are definitely heavier but have not suffered the frozen "stiff" affects as regular Theraband tensioners I made have. I put an eyelet on one end and a snap hook on the other about 8" long overall. They can easily now be used on all my tarps.
BTW Happy Camper, are you planning to do a NJ hang in January? I'm going to try and make it.
i was wondering how those would work for tensioners, do you use the smallest size?
i'm also curious as to if shock cord type tensioners freeze, my guess is no.