While it's sad that more people don't report on their gains, I just received this message from Karl Backus in Panama City, FL that tells enough by itself.
Message follows:
One of your groove guys years ago cut a throttle body for a 2000 Ford Explorer XLT 4WD that had so much Rhino lining gobbed on it by a previous owner that the weight wore the rear shocks down about every 8 months or so. I always traveled west fully loaded for camping and prospecting. The vehicle was only rated at 19MPG HWY when new but I was getting 27+ MPG HWY when running at altitude and using 86 octane gas.
Not too shabby for just a little Groove, I'd say!
Ron