I have 2 N64 controllers and both the joysticks are totally worn out. They don't stand up straight anymore, they just flop around and lay whichever way I put the controller down. How easy is it to replace these, and does anyone have a link to a tutorial? I have some experience soldering, but I'm by no means an expert. Lastly, should I even bother? I don't know how much N64 controllers are right off the top of my head, but would it be a better option to just buy 2 new controllers? Thanks in advance.