I did it slightly differently. I sanded the playfield down the playfield, did a base coat of white in the sections I didn't want the wood to show through. I have a little bit about it in the slides I did for Pintastic in 2015. (Crikeys, that was already 8 years ago). Here is the link to the presentation and page 10 has a couple applicable pictures. https://sourceforge.net/p/open-pinball-project/code/HEAD/tree/trunk/Docs/SS3Presentation.pdf
The only downside of vinyl is it is stretchy and so getting it registered properly is really difficult. Mylar would be a better idea if you can get somebody to print on that.
What the heck happened to google groups. Now I can't see who answered and it just shows up as MPF users. That's crap!