Looks like the Kluson site has a lot of choices. Which one did you select for the 594 SE model (nickel coating)? I have the McCarty 594 SE.Most of the time I leave SE tuners right where they are, as they're fine. It's these vintage style ones on this particular guitar that have been a problem.
At any rate, the Klusons arrived and all my problems went away. Since there's no tremolo, I didn't even bother with locking ones, just drop-in replacement vintage 3-per-side style for $70 direct from the manufacturer. I really love this guitar and I can live with putting different tuners on it; even at the total cost of nearly $1000 it's still half the price (or less) of an S2 but as far as I can tell every bit as good (compared to my S2 Thinline 594, which I really do love as well).
Thanks.