I recently bought an Earthshaker. The text on a few of the inserts near the flippers is worn most of the way off. The previous owner said there are "waterslide" decals available to fix the missing insert text. I looked around and was able to find these decals from Classic Arcades: https://classic-arcades.com/shop?keywords=earthshaker&olsPage=products%2Fdr-who-insert-decals I don't see any mention of these being "waterslide" decals.
I've never done an insert decal. What is the procedure for doing it? Would I remove the remaining text that is on the insert, lay down the decal then mylar over it?