With either of these harnesses, make sure you get the right size for your frame. Cranking down a larger harness puts the suspension in less than optimal places, which often leads to placing support in wrong or uncomfortable places.
Its not like the line from "Are You Being Served", that your harness will "ride up with wear." --- or likely, it will. And wear it will.
If you would look at the next price point, I would also suggest the TreeFlex. From my experience, I had moments that I was aware I was in wearing it for what its supposed to do, but not feeling like it was hanging off me; like it was working FOR me. I was IN my system and not wearing it. Similarly, but I've not spent as much time in a TreeMotion-- they get out of your way. Amortize the additional cost over the life of the saddle, and thus your career, and your life will be better.