My bow has lost alot of speed since I have had new stings put on it. The draw wgt feels like it is way less than it was beforeI had the string changed. Thelimbs are buriedall the way so I don't know if there is any way to get the poundage back. It was at 68 pounds but I would guess it is now somewhere in the 50-55 range now. It still works fineI was just wondering what could have caused this change and how it could be fixed. Is it the wrong string length? Are the limbs bad? Please help!