Jamie of JCraft has done a few repairs in my Valiant, he is busy so the last I took it to him I removed all the areas that needed fixing with a heat fun, hot enough to soften the glue but not too hot else you can damage the fabric, then a grinder to removed the glue - I have to add that my boat is very old and knackered so it wasn't a disaster if it went horribly wrong.
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