[hv=n=sjhaqj5dqtxxcajxx&w=saxh964daxxxcktxx&e=s9xxxhkt872dxc9xx&s=skqt87xh3dkj9xcqx]399|300|NS bid to 3nt with opps silent. East leads ♥2. North asks about leads, East explains "4th". The play goes: x, 9, Q. ♠J, 9, K, A. ♥6, A, x, x. ♦x, x, K, A. ♥4... down 1[/hv] After play is completed, North checks EW's convention card. The CC states "4th/low". North calls the TD and claims that there was a misinformation that caused him to go down in 3nt. Had he been given the full explanation, he would have played a small ♥ instead of going up with the A when he did. 1. Was there a misinformation? 2. If yes, should this be a "weighted scores" decision? The TD decided to award 3nt= to both sides judging that there was a misinformation and that it influenced the play. Other TDs thought that there should be a weighted score (60% for making and 40% for going down in 3nt) to reflect the possibility of going down because declarer might actually go up with the A even when he receives the complete information in the CC. Should weighted scores be used in a situation like this? it's normal to use them when declarer has to guess which side to finesse for example. But here, they seem to be used for guessing what declarer's state of mind will be. If it's ok to use them, how can we arrive at 60/40 and not 70/30 or 90/10?