Thanks Pete and other,
I'll certainly have a look at other suits, as I don't feel terribly comfortable in my pin stripe, but I'm not sure I'd feel any more comoftable in any other suit.
As an instructor with a log book full of SEP time I feel very lucky to be interviewing for a good jet job so will really put everything into this. I suspect my response to the interview questions are going to be far more challenging and influential than what suit I wear. Even though I have been to Pennys course I still feel anxious.