Well I finally pulled the trigger and bought an XDI35. Installed it earlier this week. What a difference. Nice to see negative knock at WOT and not spraying meth. Still keeping the Alky system on for real hot days. Also SCT just released fuel parameters for my strategy, so that should help in tweeking the tune. Will find out Friday night how well it performs, which should be good. I did a launch on the road I live on. Left at 2200, all I got was a quick chirp of the tires and she was gone.