I've got enough miles on now to give my impressions: two thumbs up! I'm sure I'm biased since I have a hard Corbin saddle but the Hagon 2810s, with 30kg springs, are ever so much smoother than my old Progressive 412s. I purposely rode 200 miles today on some real ratty Interstate Hwy. as well as rough two lane and this bike has never been smoother. Harsh bumps are still bumps but they're just not harsh anymore and the handling even seems a bit more confident. Still not quite as sweet as my buddy's Bonnie with 440s but since the geometry isn't the same that's not a fair comparison...
All in all worth the effort to get them set up right.
