There are definitely humidity factors at play, KayDub. Definitely.
Not only with the wood itself, but I think the humidity flexing does something to loosen the frame screws to allow slippage. I'm probably full of crap about that. I probably just forgot to tighten a couple screws the last time I tightened, and said "Holy crap! Must be the humidity and not my age-addled brain!" the last time I restretched and found that I actually had a bunch of loose screws.

I think I finally worked out my re-stretching issues. (I think. Time will tell.) It seems to be holding this time.
Again, try to stretch it while it's hanging somewhere. You'll get a truer stretch than the floor-hang-floor-hang routine.
Not only with the wood itself, but I think the humidity flexing does something to loosen the frame screws to allow slippage. I'm probably full of crap about that. I probably just forgot to tighten a couple screws the last time I tightened, and said "Holy crap! Must be the humidity and not my age-addled brain!" the last time I restretched and found that I actually had a bunch of loose screws.
I think I finally worked out my re-stretching issues. (I think. Time will tell.) It seems to be holding this time.
Again, try to stretch it while it's hanging somewhere. You'll get a truer stretch than the floor-hang-floor-hang routine.


















that's awesome







)