I'm talking to two different recruiters at a large company about two different positions, and they're now both bringing me on-site to interview. Should I bother to tell them that I'm doing two on-site interviews? Or should I just keep it to myself? I don't think it matters, and I'd rather not sap any momentum by confusing the process. But I'm worried the recruiters might be annoyed if I don't tell them. (This is for software/data science positions.)