Best trackstanding experience ever was riding at the end of Paris-Brest-Paris. Seemed like the group I was in was catching every single light. Got tired of it -- unclip, foot down, ok light's green, push off, clip in, go! -- and started trackstanding. On the road bike, after having just ridden 750+ miles, in 79 hours.... The folks in the group, mostly French from teams in Bretange, saw what I was doing and loved it. Some of them started trackstanding, too. We drew a lot of attention from other riders and spectators, all of them going nuts and applauding and just carrying on about the group of guys trackstanding at the end of a 1200km event. It was awesome!