Trim adjustment for running pace

Ive tried several times to get my pod calibration to match the pace of my treadmill. Its pretty close but as i get into the upper range of my running, its off by a few tenths of a mph. This makes a difference in both personal bests and total distance. I would love a trim (+/-) button on the companion or on the screen that i can tap to have my avatar match the speed of the treadmill.

Thank and ride on!