I did first mention the idea of matching up the weight limits with the US but having thought about it, 1kg is a much nicer number
Plus it's easier to throw on 360 grams spontaneously than it is to take it off, so if we ever want to compete against the Americans, just add some weight.
Also there's no reason why a 1kg machine can't compete against a 1.362kg machine. Just equates to a 10kg featherweight fighting a 13.6kg featherweight, and there have been numerous occasions where the lighter FW has defeated the heavier FW.