I just tried super tucking with Pace Partner Brevit group on descent from Titans Grove KOM I pushed over the top on to the descent and stopped peddling once I was at super tuck speed. I was front to mid pack of probably around 20 riders as the descent passed half way I gradually started to fall back by the bottom I was over 2 seconds back. I was on Scott Addict RC frame with DT Swiss Disc wheelset it seems clear to me that super tucking is not possible for myself if descent had been longer eg coming down from the Alpe I would be several hairpin’s back.