This is the first time I have run a YS 1.10 so I can't comment. On the third flight today the exhaust pipe broke where it reduces in size [] I am ordering a new exhaust pipe from CH AND I'm getting the Hyde mount. I've got to try it there is just too much vibration going on. There was a P-47 at the field today with a YS 1.10 and the Hyde "A" mount and yes it did move around a bit but the vibration and related noise was 0 compared to mine.