I shoot a 63# Wes Wallace and get 170 fps with 732 gr arrow. I have 265 gr up front on a 32" 2219 shaft. I have a long draw though and shoot a 64" bow. The Bob Lee I have is also 64" and shoots at 67#. It seems to be a little more sensitive to tuning and brace height. I had to put a very thin side plate on it to try and bring the the large diameter shaft closer to center. I think the BL is a nice bow and shoots fast, but in my hands its harder to tune. You may get better arrow flight and still reach your speed goal of close to 165fps if you change from FF to a B-50 string. I had to do that as well. I love 2219 shafts and do what ever it takes to get them to fly, including building my own bow that shoots them at 60#. But again, I have a long draw. Mike