After building several models of warships’ boats at a scale of 1:32, I switched to 1:96 scale for my present project. I am now building the various metal fittings (soldered brass). While 1:96 scale is 1/3 that of 1:32, these fittings being three dimensional objects are 1/27th the size of those for a similar 1:32 scale model.
Likewise your sails, furled or set are also three dimensional. At 1:96 scale virtually any material that you use will be noticeably over scale. For example, let’s say that you can find material that is .005in thick. At 1:96 scale that’s approximately 5/8in. Way over scale! I have some real #10 duck canvas that I measured several years ago. I don’t have the numbers in front of me at the moment but 1’ll check later today.
At 1:96 slightly under scale is better than over scale.
Roger