I suspect if you saw it at the 2011 SEMA then you might have talked to my buddy Jim Shelton, he has the burgundy '32 roadster that was in their outside booth. His was one of the cars used for pre-production testing. He doesn't work for MSD, they just knew him. Why Jim's car? Cause he drives it. He put over 9k miles on it in a single (albeit long) trip last summer. I'd say he has close to 12k miles on the injection setup, maybe a bit more.................and he loves it! (As an aside, he's put almost 100k miles on it in the nearly ten years it's been on the road) He has had the return line since initial install. After MSD released it for general market they did do a small update for his unit, otherwise it's gone untouched. A couple other features that struck me positively is the minimal wiring harness that looks very clean, and the supplied tuning module that eliminates the need to link in a laptop.