Very cool, I'm considering trying one of these. One problem I have with all stems I've tried is that no matter how tight I tighten the part that clamps the bar, the bars will always shift ever so slightly forward or backward a tiny bit when crashing hard in just the right way. Like, for example, landing the bars hard onto the ground in a hitchhiker position. I'm not surprised this happens considering the forces/physics applied, I just find it frustrating because even a tiny change is quite noticeable to me.