I am by no means an expert but I did have a similar problem with my Drenelin a few years back. I don't know anything about Rhino arrows, but I'm thinkig you should try a heavier spined arrow. I was shooting 28.5" draw and about 63# with a Carbon Express 250 and had the same issue. I went to a 350 and solved the problem, basicly just a heavier arrow.