Whats the point of all this fuss about power meters and training plans if you cant even sustain a decent wattage on a flat road? I mean, come on, its not like were talking about climbing the Alps here. Ive seen Cat 5 racers who can hold 250 watts for an hour on a flat course, and yet I still see experienced riders struggling to break 200 watts for more than 20 minutes. Whats the secret to unlocking that extra 50 watts of sustained power on flat terrain? Is it really just a matter of riding more or is there some magic training protocol that Im missing? And dont even get me started on the whole functional threshold power thing - if I can only hold 220 watts for an hour, does that mean Im just not cut out for this cycling thing? Give me some real, actionable advice on how to improve my sustained power output on flat roads, or admit that its all just a myth perpetuated by the cycling elite.