I recently came into possesion of a Masterlock bike U-Lock. The lock is semi-old and the key has been lost, and it is quite rusted. I tried to pick it, but it is too rusted. It is so rusted that the plug will not rotate at all. No pin will bind. I was wondering if there is some way to unrustify the lock, or if I should just toss it.
Also, I have never attempted picked a U-Lock before. I would appreciate any tips you guys can offer.