'I ♥' is very responsive to developer action, and I am calibrating my first set of digital negatives to a single dynamic range. I have tweaked my favorite developer to what I consider a perfect fit for my own, personal "Holy Grail" goal (the Look, visualized mostly in the soul, formed around the memory of that first, perfect, photograph you saw). I humbly dub it "Defender 55 DWR". 'Bűrki and Jenny Cold Tone' and 'Ansco 135 Warm-Tone' round out enough developer control for even my obsessive-compulsive requirements.
Note: It's looking now like the amidol developers will need a different set of negatives. Amidol is too expensive (and toxic) to play around with. Time will tell whether or not I devote much to the effort.
"Defender 55 DWR" (starting from the classic Defender 55 D: The Darkroom Cookbook, 2nd Edition. Stephen Anchell, 2000)
Working solution. 1: 2 parts stock to water plus 25 ml 2% benzotriazole per liter working solution. Two minutes at 68-70F.
Please see The Darkroom Cookbook for the recipes for 'Bűrki and Jenny Cold-Tone' and 'Ansco 135 Warm-Tone' developers.