Hi! we have quite a lot of experience with KS posts, and overall, they do a great job. There are a few small things that dropped the score here: it has a tendency to get "stuck down" after the bike sits for a while, you may have to force it to return back up (usually not critical, but sometimes it remains stuck down and has to be serviced to fix this - a known issue with KS posts in general). The post tested here also started to develop a tiny bit of sag as air leaked to the wrong side...