Hello, I'm looking for some help with arrow setup. I've tried several times to download Stus calculator without any success so I am hoping someone can give me a thumbs up or thumbs down for my choice. My bow is a 57lb at 28" Cari-bow SLynx 60" longbow. String is 8125 material with rubber catwhiskers. I shoot three fingers under and my draw length is 26.5". My arrow setup is Carbon Express Heritage 150's cut at 28" with 100grain brass insert and 135 grain zwickey broadhead. At the tail end of the shaft I have a capwrap,nock collar and fletched with 3-5" shield feathers. Am I in the ballpark? Thanks Todd