At this point in my life I don't really care about all these different measurements (VAM, power output, etc). I focus on my cadence (higher is better for me) and pedal stroke. I still climb considerably faster than anyone else I ride with so typically ride by myself because I hate having to slow down on hills. Shoot, I don't even ride with computers, gps anymore. I'm not out to race anyone but just stay in shape and have fun.