I will experiment with this soon and from reading since it has a 100% α-cellulose structure the clear in theory and definitely resins pass through it, and not sit on top of it like mylar I am guessing as the clear probably isn't attaching well to the mylar making it brittle...??? (wild guessing around that statement)
this looks like the particular type to use for printing - hahnemuhle rice paper
http://www.des-pl.com.au/products/shop-by-category/aqueous-media/fineart/matt-fineart-smooth/hahnemuhle-rice-paper-100gsmfound another video showing another technique - am thinking you could apply the design (with register marks) and then let it cure and then route the inserts and switch slots etc setting the playfield / cnc router with register marks and then clearing.
