F. All discs used in play, except mini marker discs, must be uniquely marked in ink or pigment-based marking which has no detectable thickness. A player shall receive a warning for the first instance of throwing an unmarked disc if observed by two or more players of the group or an official. After the warning has been given, each subsequent throw by the player with an unmarked disc shall incur one penalty throw if observed by two or more players of the group or an official.
Permanent maker or sharpie is fine and make sure all of your discs are marked before a tournament
The key in that rule is the NO DETECTABLE THICKNESS. If it's thick, it adds weight and might possibly change the balance of the disc depending on the positioning of the ink. if you can run your finger over it and not feel it, you're good. Almost everyone marks their plastic with Sharpies with their name/pdga/phone/email in some combination.
This also includes the discs that have been dyed correct? The dye does not have any thickness to it. I have seen many Dyed discs that were awesome looking and wish that I had the talent to do something like that.
what is a good way to REMOVE permanent markers off discs? (i.e sharpie) I have to change my number and can't get the old one off my champion viking, but i tried (aerosol) hairspray and it removed silver sharpie off my star wraith, gl flow, and z buzz. It also removed my hot stamp on my viking but not the number.