If you took random test samples of glass recurve bows that have been made in the last 50 years, and compare them to random test samples of selfbows that have been made in the last 50 years ,and backed bows in my opinion, and on "AVERAGE" the glass bows would be smoother drawing,faster, and more durable. Some guys on leather wall who make glass bows would like to think their glass bows will compare in every way to wheel compound bows.In the real world that is not going to happen any time soon. JMO. I have a passion for all kinds of bows, and own, and shoot self bows,backed bows, recurves, compound, and cross bows, and am not bias.