Just a heads up. Charlie Lamb has a good supply of Jack's string material. He was authorized to make them for Jack's bows before Jack passed away. He can make stings for your Jets, Classics, and original Gamemasters. You can contact him here on TradGang.
Does that cap have a silkscreen logo or is it embroideried. The silkscreen ones Jack had done in California. I had the embroidried ones done for him here in GA. If it is embroideried, take care of it, I only had about 2 dozen made as I recall.