Both Microphen and DD-X are P/Q developers, which give a bit more graininess (and a little more speed) than P/Q developers such as D-76 and ID-11. Microphen and DD-X give higher acutance but it's at the expense of fineness of detail.(posted 8531 days ago)D-76 and ID-11 are, of course, old standards. I'd simply use either of them at 1:1. If you'd like to see if a lesser amount of sulfite affects the results, dilute them 1:3 and use about 1.5X the 1:1 development time. I think there's sort of a tradeoff between sulfite concentration and contact time in that if you reduce the concentration but have longer contact time results are pretty much the same.
I've read in a few places that Microdol-X 1:3 and Perceptol at a similarly-high dilution will give the highest RP, probably at the expense of acutance and speed, but I haven't messed with either of them in so long I have no idea.