Dave,
Juma is not so bad like Elforin.
When I do Elforin I glue the slab to the paint stick like I always do but I cut my parts deeper than the .187 thickness of the Elforin so the parts are clear as soon a the paint stick is sand away.
I learned my lesson the hard way and clogged up my sander sanding on the Elforin. Never again!
Rick