I once worked with a guy at EK who was working on high iodide emulsions for C41. He was also working on high solvent developers. By using both, he got extreme edge effects at high iodide. I have forgotten his work, but I remember that the edges were excessive. So, solvent + iodide can give edges.

As for Kriss, our work at EK was directed toward including edge effects. I posted here two of Kriss' graphs showing edge effects and then plots of micro and macro contrast.

These combinations mean that 35mm scale result often are no match for 4x5 results as the scales differ. A 45x contact printed can only be compared to a 35mm enlarged to that size. So there we have the problem of comparing macro vs micro edge effects and contrasts.