I've got an older Delta Model 10 contractor saw, but I'm not a big fan of the fence. It seems to require some banging as I tighten down the locking lever, or else the hook on the back side of the fence pulls the fence out of parallel with everything else. I didn't used to have this issue, and I've cleaned and waxed the rails. I've considered replacing the fence, but don't have $600 for a Biesmeyer. Any other options guys?