smalljaw, thanks for the compliment, My modifications are sometimes not so pretty and all are carefully thought and rethought before proceeding. All are done freehand with a hack saw, dremel and or drill press. I have messed up a couple of mold cavities when I first started doing this and have learned to go slow and think about each step, grind or cut before I make it. I usually achieve/attain my goal and other than the loooks of the mold, am happy with the end result.