To clarify, I don’t have a vibration per se’, it’s the “Honda wobble”. Didn’t have it with the original stone but I switched to an e4 and have had it since. I’ll go back to a stone and see if it changes. I’ve got video of the wobble in the bars immediately after leaving the dealer with the new tire and returned to show them. They checked the head bearing, retorqued every thing, and told me I was supposed to keep my hands on the bars. It’s at least documented.