You could be overbowed i am not sure.I weigh 150 lbs and stand 5 foot 7 inches tall with a 26.5 inch draw lenght.I have been shooting traditionl bows since the age of 8 years old,33 now.Never touched a compound until 2 years ago just to see what it was like.Didnt like it at all.I was shooting over 50lbs at 15 years old,today my bows are as follows at my draw 59lbs,60,61,63,65 and 77lbs.I shoot all these bows well and dont feel overbowed one bit.But i snap shoot,when i reach full draw and my middle finger touches my mouth the arrow is gone.If i try to hold i shake,i can hold 2 to three second without shaking.Holding is not my shooting style and never will be,this dosent bother me one bit.You mentioned that you shoot well with this style.Why change that and try to hold if you dont have to?Or is it something you just want to be able to do.I can only attribute my own abilities to shoot heavy bows due to years of conditioning archery muscles and my style of shooting,i am a small guy and freak people out on a regular basis with the weights i accuratly shoot,i think with time you can shoot your 55lb bow real good to.I also shoot with the tips of my fingers and find they only get sore if i dont shoot much,when i am shooting all the time they calus up and theres no problum,when i am shooting my heavier bows i anchor a little deeper into the string cause it just feels right.I would borrow your buddies bow and give it a try,but i wouldnt give up on that 55 lber,with practice and condtioning it should be no problum for ya.Goodluck.By the way if i try to hold my accuracy suffers,so i just dont and dont worry about it.