Also, timing. It's best to ask when you have a big responsibility on a project that's just starting up. And... confidentiality... While compensation transparen

Also, timing. It's best to ask when you have a big responsibility on a project that's just starting up. And... confidentiality... While compensation transparency is hip these days, I suspect it's not so popular at less 'enlightened' firms. I would make it clear that any raise you get, and your pay rate in general will not be shared.