Some years back, you indicated that for a panchro emulsion, it is best to mix a each dye into a separate section of emulsion, then mix the 3 portions. Then, just a few months ago, you said that a blue sensitive portion, with no dye was not required. I have found the latter to be true I think that my next emulsion will contain only SDA3057. Half will contain only Br,or Br plus a small amount of I. The other half will contain Br plus a greater dose I.
It has occurred to me that, because my work involves in camera color separation, I do not need a panchro emulsion. I could just use 3 differently sensitized emulsions.