If one is running a ti post do folk think the added compliance would be noticed in a blind test over and and above an aluminium post ?
Yes, I’ve run a Thomson and Lynskey ti seatpost both in 31.6mm and 27.2mm flavours and there’s a very obvious difference in feel even in the larger size. It’ll obviously depend on how flexible the ti post is and how stiff the alloy one, but back to back on on the same bike with the same set-up otherwise, I can definitely feel the difference.
I’m sure lots of people will be along to tell you that I’m deluded and it’s all down to tyre wear or something, but my experience is that you can tell. I’m not saying it’s worth £150 btw and I actually prefer the slightly stiffer feedback from the Thomson in a Ragley Ti, but I think there is a very definite difference.