I put on a textured leather wrap for a customer, and when he plays about an hour with the cue, his hand is black. He did say that a long time ago, he had a McDermott cue, and it did it also. I have not changed it yet, as I have been experimenting with it, to see why it is happening. I have tried spraying it with sealer (Tiger) and it did not help. Thanks for all your help.
Jim
Jim