I could not decide and did not get a chance to try either. With the wind bashing and noise something had to give though. The lip was the cheapest fix and the taller windshield looked slick. The cheapest won, I am happy with the results. I installed the lip with masking tape first to experiment with positioning and found the taller position best.Once stuck you are done, no chance to move. The next time I will squeeze to make a little more room for air and raise just a little. No more head bashing and noise reduced about 75%. Makes for a pleasant ride, and it is easy to see over.