not using it yet. but will be sometime next year. i know that Fab is running it, and Paul was before he parted his car.
i find for FI it to be a very usefull mod, especially with superchargers, heatsoak is one the two major killers for supercharger users. water alcohol helps cool the charge restoring your power. for the turbo guys WI is great for retarding detonation. i have yet to read anything about stock cars using it and having any substancial use for it.
than again maybe your hinting onto what your next project might be Bruce