Can you post details of your setup?
Bow, draw length, arrow length, draw weight, release, loop or no loop, arrow type, arrow spine, etc.
The more we know, the more we can help you.
It sounds like the bow is out of tune, and or the spine of your arrows is off. (most likely weak) Shooting a release aid, its always best to go with a slightly stiffer arrow.
If your arrow happens to be too stiff, you could go with heavier tips. If its too weak, you could go with lighter tips or crank the bow weight down some.
I also agree with the others about feathers and helical fletching. Straight fletch can be touchy with broadheads and vanes can really throw an arrow off if they are contacting the rest.
If you cant get the problem solved with your shop, bring it over to ELBait, and I will have a look at it with you.
On a side note, heating carbons is not a good idea. The heat can ruin the bond of fibers causing the arrow to weaken. Which can cause an arrow failure. Try mixing and matching broadheads/arrows to get the blades lined up. (It shouldnt matter if the bow is tuned, but I know its one of those things that just gives you piece of mind)
