I went to the arenacross national in Milwaukee, 3 times back when it was 125,s and 250 2-st. The races where very exciting, in 06 I went to a arenacross the classes where 250f and 450f,pretty borring and the 450,s where so loud you couldn,t stand it. I,m hope to get friday and sat. off at my new job, then I can race the friday night supercross locally on my cr144.