Setting the displacement only affects the base map. It uses the O2 sensor to adjust/learn from there.
There are limits to how far the learn is permitted to deviate from the base map, so you can get yoursellf into trouble by setting it too far out.
If you think you are hitting the learn limit, you can either widen that limit in the advanced settings or there is a function to apply the learned offsets to the base table to reset the % variance.
I recommend the latter option.
