Not sure if you're looking for input on XX75s only. So if not, I'll give you my two cents on my setup. I'm shooting a Bob Lee Exotic Bi, 60" and 45# @28. I draw a little less than 28. My arrows are Beman Centershot 500s, regular insert and 200gr field points. They're cut to a tad over 29" and fletched with 3, 3" shields. I also shoot a fixed crawl style. I've also shot these with 200gr single bevel Cutthroats and 200gr Simmons Interceptors and they fly great. As far as I'm concerned, and I'm a fairly new to trad archer, from my experience with bow setups, form, and in particular your release, are the prime factors in tuning a bow. What arrow works for one guy with basically the same bow won't necessarily work for the other guy. But as I said, I'm fairly new so take my advice with a grain.