by dat8962 » Sep 26th, '08, 18:40
Don't file it down - return it to WMS for a return so that they can then inform their supplier that there's a potential production problem.
If you do this then you may end up helping to resolve a problem that will help those who buy it in the future.
Mine has never left a mark on a coin so in defence of WMS, you'll always get one or two that slip through the quality control net.
Member of the Magic Circle & The 2009 British Isles Close-Up Magician of the Year
It's not really an optical illusion - it just looks like one!