PSE makes a great bow. The most important thing is you have the correct draw length for you. As far as poundage yes the bow will be a little slower but many well know hunters are using lighter draw weights. Roger Raglin and Uncle Ted are using bows in the 50lbs range. Fit is most important because that relates to form and form is a major contributer for accuracy. It will help with minimizing movement when drawing your bow for a shot on an alert whitetail. Personaly I think you will be fine.