My castle 1717 (from the castle sale a few yeears ago) let go about 2 weeks ago. One of the windings "broke" leaving me with a useless can but a rotor which should still be useable. I have already replaced the castle 1717 with a leopard 4092, so i do not intend to fix it anymore. You can find a new xo1 rotor on ebay. If you are interested in a used rotor for less than half the price of the new one shoot me a PM.