[xxs]

>ski flying where competitions are basically lotteries in who gets a favorable gust

That has always bothered me that there are some calculations/arbitrary numbers based on the wind... to a point the length of the ramp gets adjusted. I recall when the V shape was introduced, initially it was shunned by the judges for bad style (negative points), regardless it was obviously aerodynamically better. However, swimming would also be affected as the water temperature won't be constant either.

[eru]

Many swimming competitions are indoors, so water temperature can be adjusted to a standard easily for them.

(But you are right about outdoor pools. They are much more of a hassle to adjust the temperature for.)