Hi All, I am using a slick rayon yarn, warped through two heddles on my Flip at 16epi. The yarn is Slinky from Silk City Fibers, in case anyone is familiar with it. I have never used this yarn before and am only a couple of inches into the weft. It is beautiful, however, I am having two issues with it. I am hoping someone here is more experienced and can lend a hand! 1. The knots where I tied on to the front apron are coming undone while I weave. Aargh. 2. The yarn is so slick that I can't get balanced weave. When I beat a pick it is like elastic and bounces back up. The tightest I have gotten so far is 10 picks per inch--looking for 16. As I haven't used this yarn before, I don't know how much fulling I can expect, but it is rayon, so doubt I will get very much, and I am fairly way off balanced weave right now. Any help or tips you may have are appreciated. Thanks!