I am currently shooting 56# with a 30 1/2" 2216 arrow with a 150 grain head. I also use this same arrow for my other bow that is 51# @ my draw length. This arrow flies great from both in my opinion. I don't remember which chart I used to come to this set up. Now, some one tells me to check some other charts, and it looks like I'm over spined. Many charts are recomending I should shoot 2018's I don't want to mess with what is working, but i want to do the right thing as well . I wouldn't mind adding more weight up front, but can't figure out how to do all the crazy math. Charts are making me nuts. Any suggestions please?