I replaced the 3-point bridge on my USA Schecter Tempest; never regretted it - those bridges suck. I had to make a custom plate to go under the bridge to raise it to the proper height - I also made it wide enough to cover the old holes (filled them with dowels first - do this as the replacement bridge screws will most likely be over one of the holes, and its better for sustain).
It all turned out very well. I originally started out with a BAII but I had issues with string spacing on my particlular bass, and ended up with a cool Schaller bridge that has infinitely adjustable spacing. Regarding pulling the anchors, I bought a tool from Stewmac that is designed to do this as well as the push-on volume knobs, and it has been worth every penny. PM me if you are interested and I can send you a pic of the bridge.
Cheers
JR