Rack,
Your flight problemmay not in the head. If your bow is not tuned and your arrow are not matched to your set up going to mechanicals is like putting a Band-Aid over a bullet hole. It covers up a problem that is still there.K.E. will suffer and it will still shoot poorly.

That being said, I have used Rocket Steelheads with great results and my son still shoots them. Ishot Puckett's Bloodtrailers when they first came out and took two does with them but God only knows how I didn't loose both of them. Puckett'saretrash.

There are some more good ones I am sure but I can only tell you about the ones I have personally used.

Shane