I dont think there has been much discussion of the form in which developing agents exist in solution.
Metol is methyl p-aminophenol sulfate.In sodium hydroxide(Metolal) it may form sodium methyl p-aminophenolate.In Rodinal is potassium aminophenolate.Metolal and Rodinal are chemically similar,may have similar tonality.
In Vit-C developers with carbonate it may be the metol exists in solution partly as a different compound,not sodium methyl p-aminophenolate.They are less likely to be Rodinal-like.
In sodium hydroxide+sodium ascorbate its anybodys guess in what form the metol exists,but it favours my case that it should be aminophenolate so I'll stick with that.