The Community of Disc Golfers and About All Things Disc Golf
Don't use anything toxic, like goof off. Stuff is bad for you!
Put an x on the other number. Write the new one.
Over time the old one will wear out.
Always wear gloves if attempting to clean with any solvent!
Ask any disc manufacturer the plastic is porous. The ink is absorbed into it.
The only way to really remove anything is a belt sander?!!!
Be earth and body freindly....
Some plastics are easier to clean than others. For example, I have not found anything that gets Sharpie off of the Star variety.