I don’t know how much of a difference it makes DC vs SC but either way if you tried the new style bridge in yours we will be interesting to see what happens. If I were to buy a 594 now I would opt for the older style bridge with the block brass saddles and definitely locking tuners…. I like to convenience of locking tuners.
Definitely agree on the locking tuners, that's where I was at when I purchased mine. The saddles, I didn't even realize were changing until after I had the guitar. I would try the new style, if I had them lying around, but otherwise I'm quite happy with it as is.