I have a contact who has been redecalling machines for many many years and he has advised me repeatedly that the more chemicals you use on the cabinet, the more problems you will have with the new decals coming off over the next 6 months. all of these chemicals previously mentioned will leach back into the wood and the more they will then leach back out over time, killing the new glues ability to hold decals on.

He suggests using a much harsher grit on the cabinet to get the glue off. he uses 180 grit to start with. (but different sand papers n brands will vary obviously).

He then sprays the complete cabinet with grey spray bog which can be purchased from places like Super Cheap Auto for little money. I can get the exact brand for you if you want. He then uses 120 grit then resprays with bog then sands with a lower grit and so on.

Getting the majority of the glue off is ideal, but not neccessary at all. Using chemicals on the cabinet is a big NO NO according to Pete who redecalls pinballs for a living. Hope it helps.