Need to know why on longbow?

[dad]

I have a HH longbow that is hurting not my shoulder rotor cup but my back mussel a long back shoulder? When I shoot my recurve it doesn't hurt. Now my recurve is 44 @28 and I draw it 28 and My HH is 50 @28 but I only draw it 27 and that makes the bow 47#. Any Ideas on why this is happening or the cause of this?  

[Dryrot]

don't know but the difference may be from a different bow hand position causeing different stress on the muscles

[TexMex]

dad, that sounds real BAD! You need to send me that bow I will scrafice and help you out.    

seriously though, I agree with Dryrot it may be you hand position.

[dad]

Well the bow is straight griped. The funny thing is its not my bow hand its my release hand. The bow and I are right handed. I'm thinking for the right price you might can have it. I went and tried one of the Hybrids with long bow limbs and the same pain but not has intense. This has reley got me baffled!