An excellent way for a multisport athlete to improve is to enter single sport competitions. It only works if you go in without ego and a desire to race your own race. I've never had the nerve to enter a serious road biking race so I'm uber-impressed by you. Great stuff!
Thanks. I was pretty nervous and stood out like a sore thumb with my bike but was determined to do my own thing. Turns out my average was 29.3 which was more than I thought I would accomplish so I'm pretty pleased.