I'm sure your right, but at 50 I don't race and this works for me in fast group rides. My endurance is almost totally governed by my cardio rather than muscles fatigue so this helps my HR recover. Also it is pretty relative I am probably riding at around 20-22mph in a 53/15 when drafting and closing a gap for me is ramping up the cadence to 100 and getting to 27mph quite a bit different than racing.
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The problem with the gene pool is that there is no lifeguard and the shallow end is much too large
2013 Noah RS