Didn't even get past the front wheel before I realized they are not right for me, bummer.
Not to nitpick but a pair of €200 skewers deserves to get picked on, a little.
Starting with the front wheel, I installed the end cap that seats into the dropout upside down and quickly realized it when the wheel was sitting cockeyed. Flipped it and gave it a second try, the quick release lever didn't line up on my fork. This was not a deal breaker but I do notice the levers on this design fold in further then any other skewers Ive owned. So, I positioned the lever as far inward as possible and gave the front end a bounce test... ((((brrrrr))))
!?!?! Well that aint right! Wheel sounds like my hubs preload wasn't adjusted, rattle, vibration, no good.
Alright, let me try the standard end caps then. I liked the idea of a seated ones but the lever doesn't line up so...
Third attempt. By now I'm thinking I wouldn't want to use these in a race, but this isn't my race bike anyway. I read the included instructions and torqued them down no more then the Zipp skewers before them but the rattle and vibration from the front wheel was still there.
Took them off, put the Zipp skewers back on and the C59 is solid once again.
The closing action and workmanship of the TUNE skewers is topnotch. IMO the axle is too thin which may have somehow contributed to the vibration I was feeling.
I bought some Zipp Ti skewers to save 10g last season and had the same problem as you with the slipping rear wheel so I'll just stick to the ones that came with my 404's.
Anyone want a set of TUNE U20's?