Depends how the load breakpoints are scaled.

You can scale your 0% and 100% to whatever you require (depending on ECU).

For example, on a NASP car, you would have 0% at full vacuum/inlet manifold depression and 100% at atmospheric pressure. Yet you could rescale that loading to run 30psi on a turbo car.

You have exactly the same amount of cells to map, just with different scaling.