xfuego, regardless of what the term "piggyback chip" means in the computer world, its meaning in the automotive world is just as I described. Do a little research and you will see for yourself. I know at least a little bit about both worlds.

bullseye, thanks for not jumping back into the fray again. I really am trying to get some useful information from a fellow Crossfire driver.

robbradsell, thanks ... I am still very interested in hearing what kind of results you get.