On yesterday's ride I found it impossible to pack with the riders that were around me. There were a couple of riders, I recall a Noah and a Jon, possibly Insomina (sorry if I don't remember right) that were hanging around but they seemed to jump forward and back constantly so there was no way to get close to them and draft. One of them, Noah, was jumping several minutes ahead and back in time. He arrived before me but his final time is listed behind. Why is this? Were they using the "pulsing" style that you have been talking about? Again, if the classification is ordered by W/Kg there are some anomalies difficult to explain by team draftings or strategies. Obviously in my case the vortex handicap is involved and I lost time in the descents as always (I made 3,3 W/Kg and should be around the top ten in the W/Kg classification, but ended 16th), but that is more difficult to explain comparing between Bkool pros, isn't it?. It seems impossible to get to the bottom of these variations... Anyway, thanks rickB for hosting the race, it was fun!