Yea Bob, I was told the same thing by many hobby shops. They all said they work and many do it, but I talked to a rep at Futaba and he said don't do it, so I tell people to not do it. You would probably get away with it forever, but for me, the price dif isn't big enough to make a diff. I would rather have one I know I won't have a problem with.

I am sure they say not to do it so they can sell more crystals, but who really knows.