On TexAgs radio happy days? Don't think he quite sad that, more they felt their case for reinstatement was good and surprised it was dismissed.
Interference at changes is interesting. The USA men at world champs ran into a stationary Brit (in his own late) flipped and didn't complete the change and had to just deal with it even though the British guy had a massive ass and it was sticking into the use lane!
Only video I could find, terrible quality. Check about one minute and three minutes
https://www.youtube.com/watch?v=mldwCwoU3xo&feature=youtube_gdata_player