Zinn Titanium Seatpost - 20mm setback

I was having issues with my old seatpost and it's wedge style clamping mechanism holding my saddle at the correct angle while riding. The Zinn seatpost checked the box on every need I had; 20 mm setback, a robust clamping mechanism that wouldn't shift the saddle angle while riding and a clamping mechanism that was compatible with 7x9 saddle rails. This is a great seatpost that has me back to long rides with no discomfort due to a constantly changing saddle angle.