@lewm , would you say that I need to rethink my protocol as stated above? My cartridges I am using in rotation are the DRTxv1s, ZYX original copper Universe, Shelter 901, Koetsu RSP, AT ART9 and ART7 and a Grace F9 SS optimum line contact, the latter MM I do not demag. I have followed this protocol with no derogatory results, that I can tell, but wonder if what I don't know might be hurting me in this matter. Looking forward to your response, not trying to bait you on this, do believe that it is pertinent to the OP. Thanks
