Worked after trying different tire heights
So it works great, but required trying different tire heights to get it right. First I compared speeds using my hand held GPS unit and it was off after entering the manufacturer spec of my tire. I learned this is not the height I should use, but rather the height of the tire measured from the ground to top of tire with weight of the vehicle on it. My tire according to the manufacturer measures 33.98", however with the weight of the truck on it, it actually measures just under 33".
Egde dash pod
Nothing too exciting about this product but it works. I have been really happy with my Edge Insight CTS monitor but got tired of staring at the large suction cup mount on my windshield. I ordered this pod to clean up the look. The only negative in my situation is that my interior is tan and the pod comes in a very dark gray. It requires painting to look right which is not a problem, but adds $25 to the cost once you buy prep/cleaner and a can of matching paint.