Especially if you don't have a local practice group near you. I've been riding/racing road for a while and did my first cross race this weekend, and came in 4th out of 46 riders. I figure I'll cat up, and start focusing my training around CX racing. I'm looking for some things I can do on my cross bike as well as on the road, since I can ride road year round. I especially need to do something to increase my endurance at high-intensity.