Show me the dyno sheets and I'll believe.
Until then the ignition on my RS is the best of any car I've yet to own. I have no evidence that it is inadequate in any way, and certainly not at stock compression and with the stock rev limit. What you haven't told me is WHY anybody should rip out a more-than-adequate ignition in search of something "better". Is your working theory that the new ignition burns more of the fuel? If so show me that the amount of unburned fuel in the exhaust has decreased. Just saying that it works is not enough. My stock ignition works great in the cold, hot, humind, rain, snow, and on nasty roads too.
Also, I have my doubts that your mileage claim would hold up if subjected to an impartial, controlled, statistically valid test. Does your setup use the stock ignition retard system in the presence of knock? Have you taken any liberties with the spark timing, or is it exactly true to stock?