Hey guys - so, I'm building a 7.5x upscale of the Estes Echo, and anyone familiar with this model will know that the fins on this thing are...well...in this scale, they are quite large. Root edge is about 12" long with a span of around 14-15". Clearly, I'm going to be fiberglassing them to reinforce them and keep them from fluttering to smithereens on launch. The question is, what kind of fiberglass should I use, and where should I get it from? I've never 'glassed fins before (never needed to), and I don't know the best way to go about this. Also, what is the best way to do this? tip to tip, or 'glass them before putting them on the rocket? I was thinking of doing one layer prior to installing, then another layer tip to tip because I could put a lot more weight on them for that first layer. Thoughts?