A little-recognised benefit of USE posts was the extent to which they steepened the seat angle on many frames, with great benefit to the handling and climbing in most instances. As long as you had a nicely stretched TT - anything designed by Joe Murray and including the team Marins - then steepening the seat angle was A Very Good Thing. 2cms movement in the seat steepens the angle by about 2 degrees, and this has FINALLY been recognised by companies - led by Transition - as important. The Grim Doughnut of course takes this to possible absurd extremes, by extrapolating from the trends 2010-20 and then taking the same shifts straight through to 2030, if things just carry on slackening at the Head Tube and steepening at the Seat Tube as they have been doing. Absurd bike. But then downhill in the hands of a pro rider it posted 6 seconds faster on a 1.20 min course. SIX SECONDS! Horrible in every other situation though....