has anyone tried using "cordura" fabric to replace duck canvas? and if so were you successful/happy with the results. would it be as durable as duck? the reason for asking is that is, a friend of mine wants me to build a w/c canoe for him and would like to use a camo 'cordura' fabric , then use varnish or maybe polyurethane to finish. he wants the camo to show through the finish, so the need for clarity. my main concern is the durability/ abrasion resistance? i know it is used for hunting clothing/ boots and the like- so it ought to be prety tough. just had not heard of it being used before and wondered if it would be simular to 'dacron' which i know is used by some builders. lee.^.