jambon, why do you want your seat lower? (Simple question, Not saying that's wrong, just curious.) Lower seats do have advantages. I know. I've ridden decades with high seats. The asphalt is a long ways away and when I hit it, I hit it hard. I have to tip most of my bikes to put my foot down flat at lights. Cycle Oregon used to have a competition to see who could ride under the lowest barrier. I can imagine a competition where riders both race and have to pick up objects off the road while riding. Having both power and a low seat would be a huge advantage.
In general, as a racer, I suspect our natural pedal stroke is probably a good starting point for most of us. But at the same time, I know there are many exceptions to any given aspect of form. When I was racing 40 years ago, Jacque Anquetil and another racer of the '50s and 60s were frequently cited as radically different pedaling styles that worked very well.