It is my understanding that Dean Markley has outsourced its winding to Apex, a different company with mixed results. Just because we all need another strings post, why then am I loving them on my P bass? I bought several sets of them along with other new/used sets from a fellow TB’er, and they put up just enough resistance for my plucking hand and are just easy enough for the fretting appendage for me to become very enamored with them. A tad more polite than fresh Rotos with a little more bottom end. Was the ‘old’ formula that much better? These are pretty darn good rounds. Food for discussion I suppose.