Originally Posted by talonxracer
Cuting the plug in half removes material and will not recreate the plugs profile cleanly no matter how carefull you are. You use the splitter to create the mold for one side, then remove the splitter and lay-up the opposite side. This will make for the smallest and smoothest mold line
Exactly great answer.
That is also why the half round beads are added as locating keys so a perfect product every time.With perfect alignment.