Hey Bart, I found the same thing. There's a section on my local trail that I always had to pedal on to get up a small rise after a small decent and coast. The first time into that section with the new XTR hubs, i had to apply the brakes at the top of the rise to make the next corner. Nothing changed on my bike except from going from 11 spd to 12 spd XTR. The hubs definitely carried me that distance and at higher speed.