FFD,
Yes, I do think it's a bad idea.
It takes a lot of time, money and effort to train Ops bods. People really dont appreciate spending 2-3 years getting you fully trained, only for you to jump the fence to where you think the grass is greener and then they have to start all over again.
If you are honest from the outset, then maybe. But surely this can only go against you at interview stage?