I recently picked up a 1993 CE24. This is my first PRS guitar. I've been reading about the trem and I want to run this by the experts here to see if everything looks OK. The trem stays in tune perfectly but the screws are not even. I only have experience with two point trem systems. Does this need to be adjusted? Or don't fix what ain't broken? The two outer screws are taller than the middle four, and the middle four aren't exactly even.