Dont know much about the later friction dampers and their quality or lack thereof. IMO lots of Lispa and Sebac friction dampers used on Tontis were crap from the gitgo with tons of lateral play in the shaft which could only quell any unwanted steering movement when the bike is already tank slapping, not on the onset, where it may make a difference. That said there are folks on this board who think steering dampers are not required at all. No argument there. But, if you believe you need a steering damper, then a proper hydraulic unit (which uses heim /rose type joints at mounting points ) with no shaft slop should be considered.