I have an idea about what caused the sticky blades: capillary action.
After I cleaned the blades on *my* GSN, the shutter wouldn't even open! I thought I'd wrecked it. Wait ten minutes for the Ronson to evaporate and it was no worse off than before. Which is to say, still in need of cleaning. I finally used a Q-tip saturated with Ronson and repeated firings to get all the oil off. Works great, now. And I learned that those blades are so close together and so light, that any liquid will suck right in between them and freeze them right up.