A buddy of mine is a very good bracket racer, he runs a 68 rag top camaro. His dad bought another rag top and fixed up to drive on the street, the drag car had a very nice top on it so instead of buying a new top they removed the one off the drag car and installed it on the driver. My buddy said it made a huge difference in his ability to see so he can drive the big end much better, said he wished they'd removed the top years ago.