The title's self-explanatory, but here are the details.   I'm experiencing some trouble with the hinges in my XF-85 Goblin replica. More specifically, they have a tendency to freeze up while in action. Sometimes it's one hinges, sometimes it's both, other times I get lucky and they're both working properly - until they don't. Even when I revert to SPH and launch again, whether or not the hinges would work has become unpredictable.   Cute, but I didn't design this jus