I love my guitar's current set-up -- it's been about a month, and I feel like it's never been more intonated and playable. (Maybe it's the humidity level -- thank you April.) Anyway, to get this latest iteration of my guitar (a partscaster: restored MIM Joe Strummer neck, 80's USA body) I put a tri-folded piece of notecard at the bottom of the pocket. I've read both sides of the debate: leaving a space will give the wood an opportunity to swell & warp; vs. people have been using slivers of business cards and matchbooks for 60 years, and that's just the Way. I'm considering getting a Stew Mac angled full-pocket shim (or a couple of them, to experiment), out of paranoia -- swollen and warped, no thank you! -- but then I'm back to square one, or ground zero, dancing the truss rod/shim/saddle height troika and hoping to hit the golden ratio. I love my guitar, where it is today, and would rather not frig with it. Telemasters -- what wisdom can you share on this topic? Thank you in advance.