I bought the Ritchey WCS Alloy 2-Bolt seatpost and have had nothing but trouble getting it to hold my saddle in position.
It's difficult to adjust the saddle tilt because as you tighten the bolts the tilt changes.
I've torqued it to the 16 nM spec, slowing going up in torque one side at a time.
On a ride it tilted up, so I kept tightening it, it stripped.
I got a new top clamp assembly. Still having problems.
Ritchey sent me some red torque stuff, I scuffed up the post and assembly, lubed the rails and holders and still not holding.
Ritchey offered to sell me another post at "Team Pricing"
But, why would I spend more money on a product that has already failed?
If this was a Bontrager or Thomson post, they would replace it...if it even failed to begin with.

Has anyone else had issues with this post slipping?