Thanks for your thoughts. I work in Industry, so timing is not that big a deal. More relevant is probably the fact that I joined years ago, and got to my current grade and salary through promotions, in line with the previously-mentioned 'internal policy' of my company on pay increases. My colleague joined more recently. He was obviously negotiating from a position of greater experience than I was back in my day, with only a couple of years of experience when I joined.I don't think my company would admit to valuing experience gained externally above a career built internally (not to me, at least), i.e. being prepared to pay more to attract someone from outside, but not to reward loyalty / deter someone inside from leaving.That I could potentially negotiate a better deal is what I'm hoping, and that I need to step it up in terms of negotiation skills could well be true. My question is whether this fact can be a useful negotiating tool, in principle, or whether using it can backfire in any way. Does it seem like jealousy/cry-baby tactics, or is it an acceptable cause for a negative impact on my motivation?