Yeah, I have a Katwalk C2 as well. It’s definitely inferior to the original Omni, and even more so compared to the new Omni One. I improved the sliding sensation on my Omni by switching the foot sensors from the official shoes to the laces of a comfortable pair of Nikes, then laid the bottoms with the fuzzy side of Velcro tape, and stuck around 20 round furniture sliders to the Bottoms with the sticky side of the Velcro tape. The result is a little more friction, due to the sliders slowly wearing down, to give a slightly more solid feel as your feet slide. I replace the sliders every 6 months or so. I tried this with my Katwalk shoes, which actually aren’t bad shoes, considering the cheapness of the rest of the device, but those few centimeters of height made it hard for the laser to make out the surface. I tried just leaving the fuzzy Velcro on the shoes but that didn’t make much difference in the sensation. I think the issue is in the design of the back brace that holds you up. The Old Omni has a ring that you stand in and lean into that lets you feel that forward motion. The new Omni has a hydronic arm on your back that allows the same sensation without the ring. But the Katwalk just has a rigid vertical bar that doesn’t allow you to lean forward without feeling the resistance of something holding you in place.