Congrats on 250! I bought my bike from the Kick Starter campaign and could not be happier. All though I am no where near 250 rides. In the early days it wasn't impossible to get the #1 spot on the leader board. Today like you I shoot for the top 10% of the class. I just finished reading this book https://www.amazon.com/Fitness-Confidential-Vinnie-Tortorich/dp/1939337925/ref=sr_1_1?s=books&ie=UTF8&qid=1467819371&sr=1-1&keywords=vinnie+tortorich
One of the things I got out of it is that you can’t out exercise your mouth.