7/ Thoughts: don't put too much stock in one data point. Structure your data. Avoid the rage to conclude. It's easier to consider local patterns when you have larger patterns too. Visualize the data. Break the rules when it makes sense. GET. MORE. DATA.
8/ Disclaimers: All sorts of analysis I didn't do: accuracy of the dumbbells, varying the series used as X, no data between 190 and 210 lbs, nothing was NIST certified, etc.
Congrats to my old buddy Ken O'Donnell for winning the mountain biking cross country national championship! "I rode a mountain bike fairly swiftly" he said. Classic Ken.