Benz cartridge phase?


I have just read that Benz cartridges, (I have a Ruby 3H), have inverted phase; does anyone know if this is correct and if so what cartridge lead should I chabge?
dcblr

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I have just read that Benz cartridges, ( I have a Ruby 3H), have inverted phase. Does anyone know if that is the case and if so which leads have to be changed?
Thanks for the good advice, I will give it a try. If I end up needing to swap the cartridge leads which colours do I change?
I contacted Benz directly and they confirmed the their cartridges are phase correct. To confirm that they sent me the connection sequence and it matches to the sequence on my SME 309.