Fluffy, on 2012-November-09, 05:07, said:
since 4♠-1 is worse than 5♥-1 would it make sense to rule 4♠= 70% 5♥-1 30%? is this ilegal ruling? (in case we ruled that pass is a LA)
There's nothing wrong in including in the weighting a proportion of a score that would be less favourable to the non-offenders, if that's what you're worried about, so long as the weighted average you calculate works out better overall for the non-offenders than the result achieved in play.