I think I understand.
So, for example, I am looking at LDRXN with a factor of 0.0238438 for both the CH and CA boxes. If I'm reading what you've described correctly it would be no problem to change the rpm values of the CH box from
1000, 1500, 1750, 1950, 2250, 2500, 3000, 3500, 4000, 4500, 5000, 5500, 5700, 5900, 6100, 6700
to the CA box rpm values of
1000, 1720, 2000, 2100, 2200, 2520, 3000, 3520, 4000, 4520, 5000, 5520, 5700, 6000, 6520, 6800
as well as the corresponding load values, without any concern. This is true for all maps that do not have a preceding axis, which is shared with other maps.
Other than referring to the FR, is there a simple way of seeing a preceding axis?
Thanks much, DD!