I got some hinges problems too. I replaced all for Dubro nylon hinges. Much more precision and durability.
I believe the snap tendence of some Showtimes is caused by CG problems. Mine was flying some months ago with an OS 160 FX without any mods. She was nose heavy and had a huge snap tendence.
Now I made some mods (
http://www.rcuniverse.com/forum/m_75...tm.htm#7598780 ) and she does not snap anymore. CG is like manuals says (I think a little bit more tail heavy). Is the same plane. I Didn't buy a new one.