Ah, yes. I misread. Yours is fundamentally simpler (that is a compliment) and at face value it indeed seems like a good solution. Outliers distort data, after a

Ah, yes. I misread. Yours is fundamentally simpler (that is a compliment) and at face value it indeed seems like a good solution. Outliers distort data, after all. The system I thought you suggested in my misreading seems complimentary to your solution though.