I am not a shock expert either. I know there are claims by this one and that, but I heard an interesting conversation about shocks at a big dirt track race. I went down to the pits to visit old friend, who's son has been in the top 5 nation wide for a few years now. They where talking sponsor money and free shocks. What was said by three of the top dirt track racers anywhere was, what ever one that makes the deal is best. If they don't fit their needs, they make them fit. As was said there," you can make a black man out of a Mexican even if they look different on the outside". So don't go by what you see on the top racers car. You would be better off looking at the guy that is in your knowledge bracket to get a good idea what works off the shelf.