Is that not literally the definition of insanity? Doing the same thing over and over again expecting diffrent results?
If I have had 2 lifter failures in the same hole, I feel something is wrong with the lifter hole not the lifter it's self.
I also know I need to change the springs to any new cam I'm going to run. So both heads have to come off Anyway so might as well put the right ones in. I feel the cost cutting has cost me more money over the long run then doing it correctly the first time.