I'm currently building a bed for my daughter which will feature 3/8" thick vertical ship lap that will sit in a groove in the headboard and footboard. I'm resawing this from 4/4 stock. I always like to plan an "escape route" or alternative should some problem arise. My concern is that as twist and cupping is worked out of the 4/4 stock, then resawed, and additional twist/bow/cupping is worked out of that as needed, I'm trying to decide on a plan should those panels come out a little thin. Of course, I don't want these panels to be very loose.
The first fix that comes to mind is gluing in very thin shims as needed into the groove. I'm wondering if there is a more traditional, elegant, or better way that I'm not thinking of to better secure a slightly loose floating panel. I know there's those tiny rubber or plastic balls that exist that can be placed in the grooves of shaker style doors to prevent the panels from rattling, but I don't believe that would work in this application.
Thanks for any help,
Brandon