I rode my newly installed hydraulic SLX brakes today. I upgraded from mechanical Deore discs to the SLXs and I wish I would have done this long ago. I never thought it would be such a difference. I was able to use my brakes to slow down without locking up the rear brake, but still had the ability to lock it up when needed. It was so much easier to vary the degree of braking that was needed. I guess this is what modulation is. The levers felt good. They moved smoothly with hardly any resistance. It reminded me of using v-brake levers that were not connected to the brake. Considering these are cheaper disc brakes, I am now curious how the more expensive brakes feel.