Sometimes a simple disassemble/reassembled will fix it, sometimes not. Another trick is to loosen the handle and pivot screws, put upwards pressure on the scale not touching the blade and downwards pressure on the scale rubbing on the blade. This will move the blade towards the opposite scale on which it was originally rubbing. Holding this pressure on the scales, carefully tighten the screws back up, starting with the handle screws moving up to the pivot screw. This method has worked for me on a few different knives.a side effect of this method on frame and liner locks is that the lockup will now be slightly earlier. If that doesn't work and the blade is still off center to the non locking side, you could try disassembling it again and giving the detent ball a couple light taps with a hammer and nail set. This may seat the detent ball slightly deeper in its hole, which would effect centering.