At the bike shop's inside ride, they switched to the "power" series (http://www.saris.com/p-343-power-training-dvd.aspx ) that's done with the guy riding *with* us (bike mounted cameras & mic) and breathing hard and everything. Same endorphins I at least get to ride home to cool down afterwards... I like a gentler touch than Coach Troy - you guys are nuts! In a good way, but nuts!!!