Quote Originally Posted by Photo Engineer View Post
Mark;
If you slide those curves around a bit, you find that the Xtol causes higher speed and sharper toe. Your developer is softer in the toe then and has low Dmax.
PE
X=0 represents the same exposure for all three. Why shift the curves?
Also, XTOL is overdeveloped, which gave it a bit of pushing-effect, shortening its toe.

Mark