I use ALK-200 that I get from PPG. Nice product. The orange peal is not a fault of the product but it's application. If you sand with 2000 grit, it will not have the shine of a paint that was sanded with something higher. The hazyness is a product of scratches left. Resand at 2500, 3000, up to 5000mthen compound if you like. Be careful though, use compound that is higher than 5000. You should then have a clear bright finish.
Mike
