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I never heard of this x2-rule before. Certainly ZigZags are usually stronger corrections than what I drew here. But the only rules I knew so far is that C has to close below A and B is never higher than 61.8% of A. But yeah the subwaves for A are wrong, I missed the thin line from 22/12.

Btw I hope you did not get my replies wrong. I don't want to "know it better", I am just eager to learn and understand this better.