RC would not dare to modify, let say IGC 18 M Class definition,
please respect IGC definition of the Club Class !
RW =20

Exactly there is an FAI/IGC Club class - it has defined parameters - so why
go reinventing it? LS6/Ventus is not in this definition - maybe at some
point they will be? but for now let them fly your non-FAI sports class. Why
is this so difficult for you to do - when the rest of the world is
reasonably happy with it. I don't see you trying to redifine other FAI
classes.