[OldSchoolJohnny]

Personally I've come around to your point of view. Every week I play a very intense sport consisting of a lot of quick short sprints back and forth for hours and I've self experimented with going the full carb loading route and also the full ketosis for weeks route and repeated a few times over the years. When I play after the low almost no carb eating way I have far more stamina, much greater than people half my age who are playing with me. However I also find it takes a bit longer to warm up and get my wind under low carb but only by a few minutes.

I highly encourage anyone to try this out for themselves the difference can be startling.