My plane with me in it is under 500lbs. I has 26ft*5ft=130 sq ft wing area or 18,720 sq in. I need strength of at least 500lbs / 18,720 sq in = .027 lbs/sq in. or 4lbs/sq ft. 74lbs/sq in for oracover /5 strength ratio = 14.8 lbs/sq in for shrink wrap. I should be good by a wide margin. do the calculickulations make sense to you?