My new to me LP Studio had Super Slinkies (9-42), and I just restrung it with D’Addario 11-52. The previous owner was playing it with the truss rod completely loose, and the action higher than when I set up a Strat to SRV spec.
I got the guitar two days ago, and tightened the truss with the 9s still on it. When i swapped the strings last night, I had to widen the nut slots and tweak the action a bit, but the relief did not change. I’m letting it settle until tonight before checking again, but it has a pretty beefy neck, and I’m guessing it won’t have moved.