Actually - it may be just a degree of change compared to Bibble.
I've had a look at some of the negative conversions I did with Bibble and I note that I did have to move the exposure considerably to the right after doing the inversion.
However, the latest negatives I have copied and am trying to process with ASP seem to require such extreme exposure adjustment it is difficult to refine the tonal range enough.
To give an indication of the comparison - Please click on the links to screenshots of the same RAW images in the browser and the effect that ASP seems to have on the Inverted images. The effect is similar whether using a file that was previously processed in Bibble or a new one.