Sean: I agree with you.
But the question at hand was what to do when people who don't know each other's games, one from the US and one from the UK, play against each other at match play. The point is that they if they are concerned with making it fair, they just plain can't use their respective handicaps as given by their home associations, as the methodology is so different as to make the use against each other meaningless.
But of course in the end, keeping the stakes reasonable and just doing the best one can is always great advice!
That just wasn't the question here, that's all.
TH