Have you ordered them yet? May want to talk to a few more racers. Not many mid-atlantic racers have had success with them, one of em even called AST to complain and AST said they are not for track use even though they are almost marketed that way. A few friends have em and every single one had a bunch of small problems but most of em are happy. Most are still looking at different setups after the ASTs though.

PS- Awesome car, good god I cant imagine this thing at that weight. Mine is at 3200 with me in it, I cant image another 800lbs less even without the LS!