I wouldn't touch a thing on your bow until you do a couple of things.
1--Spin test every arrow to be sure that your inserts are true with your shaft and your broadhead ferules are straight.
If everything checks out;
2--Try another fixed blade head--one that says "spin tested" on the factory package, and then spin test them on your arrows anyway.
I bought half a grocery cart full of 3 blade 100 grain Muzzys on clearance once, thinking I had broadheads for life. Nope!
My bow is perfectly paper and bare shaft tuned, and even indoors at 20 yards with a professional watching my form and release I couldn't get consistent groups until I sorted out the best broadheads from each package to make the number of arrows I wanted. And then I still had to set my sights for the broadheads because my groups were 4 inches low and left of my field points.
I liked Muzzy's a lot, and still do if you're willing to do the above. I finally switched and it's nice to screw a head on, spin it, and know that if I do my part it will cut fletchings off my field point arrows out to 50+ yards if I shoot them out of order.