Yeah that Walnut is too fine. I'm just wondering if the seller on Amazon has changed his supplies because I received the more coarse version, not the sand.
Please do give it a try though and post the results.... or return it to Amazon for a refund.
Better looking Bally diamond shooter housing to replace the rusty one on my GOLD BALL. Looking pretty shiny already so should polish up a treat! Thanks @myPinballs