I remember we had this discussion last year man. Tbh, I didn't find that an issue because as long as you are consistent with the polarity of 2pin connector between L/R sides, you don't have to worry about the phasing effect. But yeah, Hifiman stock cable has notch and L/R marking on the housing of the connector flipped between gold and silver stock cables. But I didn't find that an issue and mentioned in the review that you need to be consistent between sides. But yeah, I noticed they flipped the connector marking on the stock cable.