"I think a mixed sex teams for transpeople and anyone else who doesn't mind being in the mixed sex team"
Seems perfectly reasonable.
And since transgender people are going to struggle to find enough people to make up a team, then surely this is the one area where trans allies can step up to help? They can be in the teams in order to help out their trans siblings.
Seven a side:
Owen Jones, Maria Miller, Peter Tatchell, Jess Bradley, Stephanie Hayden, Lily Madigan, Heather Peto
versus
Laurie Penny, Adrian Harrop, Penny Mordaunt, Ruth Hunt, Sophie Cook, Aimee Challenor, Munroe Bergdorf
Full contact of course.
It is the absolute least that trans allies can do.
Otherwise their support is just empty rhetoric.
Isn't it?