Hello, bought my neck cork from ebay, was good cork but it did take a while to come in, ordered the ten pack for future reference, had good luck with the cork but it was a little too thick so i was able to flatten it out by putting it between two pieces of PVC plastic squares and putting it in a vice, left it in the vice overnight and it came out the perfect thickness for the MP to fit right on, used weldwood contact cement to attach the cork. Before attaching the cork i rolled it up and put it in the bottom of the MP overnight and it developed a perfect curl that went easily on the neck. Good luck with your repair there are many you tube videos are available if you have not done it before. Leo S.