A good way to approach this point is first align yourself laterally to the client, so you will know where you would be if you made a lateral move, as most consulting firm grades dont line up precisely. Now explain what uplift you would beed to maintain progression + element for risk of moving, assuming bens package is at least equal to what you have now. Qualify by stating that you would therefore want x - y range, placing you at A-B grade, assuming that the bens package is at least equal in value to where you are. HH dont have a problem with you wanting x amount more, what we take issue with is the arbitrary figure increase without rationale, not because we think you are not worth it, but because we need to be able to present the case to our clients. Help us and we can help you.