Yeah, I see what you're saying. I'm still curious to know if anyone has any experience making a cat cut along the ridgeline and if so, whether or not it made a difference in the tarp. I've made plenty of gear but am about to make my first fully DIY tarp for my hammock. I'm going to use the Winter Tarp design graciously posted by Scott, but am wondering if I should modify it with a cat cut. Any other thoughts or people out there with first-hand experience?