New One Up dropper post. With the front bolt on the seat clamp done up as tight as it could go, the nose of my saddle was still pointing up slightly more than I like (horizontal). Double checked the clamp plate arrows were pointing forwards -all good. Didn't make sense, especially since the STA on my bike is pretty steep and therefore on a bike with a more traditional STA the nose would be even higher. Google provided no insight. As I was drifting off to sleep last night a possible answer came to me, but surely not!. I snuck off to the store room in the middle of the night without waking the family. 15 minutes later my stupidity was confirmed. It turns out that when I removed the clamp plates to check the post pressure, I had put them on back to front and consequently I had installed the post back to front.