Definitely UHMW tape back there! I have the tape, and there is very little wear at the contact points. Make sure when laying the tape that you do NOT stretch tape as it will eventually pull away where stretched. For best results, remove the canopy, invert it, clean it then lay the tape,

Rosie
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Paul A. "Rosie" Rosales
Rosamond Skypark (L00), CA
RV-6A, 4200+ hours since 7/4/2000