I am playing in a mixed league, and they state that if a team has more than 6 people, they can use a rotation substitution, but that
A player must substitute for the same gender (i.e. men sub for men / women sub for women).
And they claim that it is based on USAV rules... but is this anywhere in the USAV rules? I have checked as thoroughly as I can and the closest I've found is that if a Libero is used,
a female Libero may only replace regular female players. A male Libero may only replace regular male players. But that does not apply to our league as we do not use Liberos.
This rule sucks for our team of 7 players, as we are forced to choose one gender to rotate out while the other gender plays the whole time, rather than everybody rotating evenly. I have looked at rules for other mixed leagues and haven't seen anything like it.