fixing the wasabi so the string wont snap

it got a pre-production wasabi in a trade today. it is in mint condition. i was told to use a 2 sided sponge to sand down the inner edges so that the string wont snap. does anyone know of any other ways to acomplish this?

Rub the face of the yo-yo on a pair of jeans.

The point is just to wear in the sides a bit. Anything that is tough, but not too rough will do the trick. A pair of jeans like mcrnja suggested would do nicely.

Umm use Jeans. lol

I’ve also heard leather.