That makes sense (tree and stick). FF materials do have some stretch, just not nearly as much as dacron. The amount of stretch in dacron (or really any material) will vary with draw weight, draw length, strand count, etc.

I agree on not pushing the limits--that's why the latest "fad" of tiny strings makes me very nervous. There's quite a few advocating 4-6-8 strand strings. To me, that's nuts. Same fad went around some 12-15 years ago, but then it didn't get as low in strands as now. Thankfully, that one passed and I expect this one will also.

I'm not going to be the one that does any limit testing--I'm in the "better safe than sorry" crowd. I will constantly be looking for more information on strings though. If someone can show that HMPE strings will cause damage to certain bows, and why, then maybe we can figure out how to modify the string to avoid that and get the best of both.