What is the best protractor for setting overhang ?

I just purchased a used VPI Scout and have set up the cartridge using VPI's alignment protractor. Was curious about everyone's opinion of what the best cartridge alignment protractor is. Years ago I had one that Stereophile sent me for renewing my subscription and it was the best one I have ever run across (unfortunately I have misplaced it). Any comments on this subject would be greatly appreciated.