I am going to go to the shop and pick up a pack of muzzy's and see what happens.

Before you potentially waste some money on more broadheads, make sure it's not the arrows.

GoldTip XTs and Hunters are usually wobbly to begin with. That's whay I do not recommend them unless our budget is super tight.

Also you should install your inserts with broadheads, spin test, then let them "set up"...not field points...field points will often show little to no wobble but broadheads will show up ANY imperfection in the arrow, how the insert was installed, or the insert itself.

Muzzy's seem to work the best for me, I had the same prob, my fieldpionts got good groups but my broad heads sucked, so I went with the Muzzy's, 3 blade 125gr, now I get 2in groups out to 45 yrds. you just have to expeiment with different things, and see what works best with your set up, like someone said, I would paper tune and see if that could be the problem. I hope you get it figured out!

i had this problem untill i picked up the nap nitrons.. they are damn close to my field points. i shot two targets with the same 6 arrows one set with the fields and one set with the naps. now i got the average of the two set ups and the naps were about .0126" lower than the field points at 25 yards. and that might be because i was already tired after shooting about 100 arrows before desciding to try my naps. i would talk to your local pro shop however, they are the ones that have the knowledge and equipment to find your problem. i think someone else mentioned that your form might be a little off. start with the basics and work your way from there, before blaming your equipment.
i love that old golf smith comercial or what ever company it was... "because its NOT you its your clubs!" that was great