Imagine that you have a 5/8 or 6/8 blade without scales but it has good steel (in other words it might have "Boker" or some other famous brand name stamped on the tang). However the blade is severely pitted and rusted. In order to clean the blade, the hollow grind and stamped identity would be completely lost and you would end up with a full wedge unidentified blade 4/8 or 5/8 wide that would need new scales. Is it worth while or does it make sense to rescue that razor and make the conversion to a full wedge straight razor?