Deer Hunters Net

I was shooting my new Maxxis 31 the other day and I was seeing at 30 and 40 yrds. my arrow flight was good 3/4 of the way and the at the end just before it hit the target it looked like it was knucleballin’ in the rest of the way. It was kinda wavy. But at 20 yrds. I am dead nutz! I mean dead on!!! I’m using Beman ics elite 400s with 4" duravanes at a 29" draw and 55# with a 100 grain tip. Sould I go to a heavier tip? maybe bring it up to 60#? or something? Any advice would be awesome!