Thanks for the answers,
I have never heard too many complaints about the mamiyas myself, this one looked like it had been put through the ringer though. Its hard not too load the film correctly as it sits up hard against the backing plate (that crossed my mind too !) for flatness. when you mamiya-ites trip the shutter does the whole camera go clunk and shake as this one did, or is that not normal !!!!!!
ta for your answers,