Hi folks, I'm new here and fairly new to making medieval-style turnshoes. So far I have been making shoes with 4mm vegtan soles and thinned uppers. I'm interested in putting thin rubber soles (also 4mm) onto the leather. I have experimented a little with cementing rubber on the vegtan with no stitiching after I've already made and turned the shoes, but I'm having some trouble because the sole is curved at that point and it's hard to press/clamp the whole sole flat. Does anyone here have experience with this? I would really appreciate any tips or pointers to resources. Thank you!