Replacing my points distributor

Some people have commented on the SkipWhite distributor installs that the shaft is to long and unless cut down the distributor won't seat on block. Has any one installed one that has had that problem? Other then that most seem to like it. I'm leaning toward the TB system, some-how my rotor got destroyed last fall like it floated up and hit the cap, all chewed to **** ! Anyway distributor is 50 years old figure time for a whole new system.