If you are not already using delta's resin give it a try. I was frustrated for a long time(about 5 years) at my inability to perform a nice looking crack repair. I got a sample of delta's resins to try them out. I was asked to try a long crack repair at a dealership ( they knew it wouldn't look good but didn't want to spend the money on a windshield). I used the delta magnibond sample I had because I didn't want to waste resin I had paid for. It turned out great barely visible no matter which angle you looked at it from. I still use Janvil resins for stars and bullseyes but I now keep a bottle of the magnibond for long cracks.

www.ohnonotagain.com</p>