Zone VI developer is packaged in two parts, dektol in one. (could be same components). zone vi mixes much easier than dektol and lasts much longer in a bottle without oxidation. when I developed AZO in zone vi, I don't get the common blue tone people talk about. zone vi's working solution (1:3) is more dilute than dektol (1:1). I saw the other post too. zone vi may be dektol, but you couldn't prove it by me.
zone vi yields results like dektol with none of the mixing/storage problems I've always had with dektol. more economical to use, too.
thanks for the reply. Bergger VCCB looks so good untoned and I thought sistan might fill the bill. thanks for confirming this.