Stability issues- is it your config?
I have been reading a number of posts about lack of stability with FCPX.
i have to say my copies and not ever crashed on me.
OK, I understand that the Apple demo machine has nothing else on it. it should not.
But my other machine is a 15″ Macbookpro i7 ( thunderbolt) with 8G ram and a 250 G SSD, and this thing has the kitchen sync installed on it, and it has not crashed once with any media I have.
If you are crashing alot, please give your hardware config and what you were doing. I use the console for monitoring what is going on with my machines when I am testing new stuff.
Post and Production Workflow Consultant
Production and Post Stereographer