What parameters does Garmin use to decide what constitutes a "hill" and activates ClimbPro? Grade, distance, or some combination? I recently did a multi-day ride with a friend who was using a Wahoo Roam and while we both downloaded the same GPS file there was a substantial difference in the number of "hills" each device recognized. I believe one day he had 23 and I had 8. Somewhere in the middle would be nice. Are the parameters user adjustable?