Our prop has been pulled yearly for the last few years. Not on purpose, just the way it worked out, but it is easy, takes 5 min and our shaft comes out just as easy. When I say easy I only mean that because I have the tools to do it. If you don't then it's not so easy..

I pull a customers Flex-O-Fold blades and clean it yearly. He's a racer and wants it just perfect and they do get pretty gummed up...