A friend of mine used Novus #2 in an attempt to remove some scratches from his windshield. All was good 'till he took a ride at night and found that he couldn't see anything with the lights from oncoming traffic. Now he still has scratches in his windshield and it is very hazey. Any suggestions on what can be done to remove the haze? What is a good product to use to remove scratches (and NOT put a haze on the shield)? Thanks.