Kirk, It's all in the eye of the beholder. Andrew makes a good point about without enough density then the selenium will have little effect. Hard to tell from scan but if the densities are all up on the straight line then the proportionate gain will be less. As Kirk, I use selenium straight to tone negs with the added benefit of saving the selenium toner (from pyro negs) and using it to tone prints which imparts a touch of gold rather then the usual red / brown tone associated with selenium toning and silver gelatin prints.
As Kirk said real gains are realized when a number of small gains combine for a significant improvement in the direction one strives for. Cheers.
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