It will in fact. I have an old xCube II which has five levels of "initial hit strength" though I suppose I should start calling them pre-heat adjust... are you missing one on the new mods?
Here's the deal on the xCube...
Min, Soft, Norm(al), Hard and Max.
They adjust the set wattage by a pre-set percentage for the initial two seconds, as follows... -15%, -10%, 0, +10% and +15%.
Haven't thought about that in a year.
Be careful about overriding the internal ohm meter, but yes, a change in res can have a drastic affect on applied power (the voltage specifically). Use it wisely, if at all... it's a bit more dangerous (potentially) than a TC mode's "res lock".