I could not duplicate your results in test mode, so I looked at it with the release FE. I don't know how you can judge 2 mph increments, but I looked at the gauge zoomed in and each tick should be about 12.5 miles. It looked to me to move 1 complete tick when I kicked in wep. Is that not what you're seeing?
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Doug "Pyro" Balmos
HiTech Creations