It's been just over a month since I received 100 feet of amsteel 7/64 from Dutch, and I have succeeded in ruining most of it. I have tried TexasBushCrafts method of a number five knitting needle to open it up and running brake line down the core, but it only frays the cordage. A number five needle is too big to fit down the core. I have tried using tape, wire, and even coathanger, alas nothing seems to work for me. Help? I don't mind buying more amsteel, but my methods should be sound before I ruin another hundred feet. Thanks.