I'm with Denver on this one, I just ride where and when I want. I don't even bother with classes or anything else. My body will tell me if I'm doing anything wrong (like this morning when I had to re-adjust my seatpost because it had, over time, become too low).
Heck, I can survive rides exceeding 200km, so I must be doing something right.
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I am clinically insane. I am proud of it.
That is all.