McCormack ALD_1 & DNA-1 Upgrade?

I have a standard McCormack ALD-1 Pre amp and DNA-1 Amp both of which I am thinking of sending to Steve McCormack for his upgrades. I would appreciate feedback as to the level of upgrade and which component to start with. Thanks, Al
You're in luck; I have hed BOTH these units, and would say you DEFINITELY would/should upgrade BOTH these, without question. The ald-1 in particular sounded like a completely different (and far better, across the board) pre-amp after upgrade; the amp also improved in transparency and smoother tonal quality w/ better bass. If you'd rather not go through the trouble of selling/buying new gear; these upgrades are very worthwhile. I say, go for it!
I have not owned equipment by McCormack--yet--but many reviews and personal contacts have raved about the revisions Mr. McCormack makes. (You can reach him directly at Has anyone heard the new DNA 125 or the RLD1? I have been told that they include many of the items that are part of Revisions A, B & C. For the price of these upgrades you might consider purchasing the new models.
Thanks Artg, What level of upgrade would you advise?
I like the B upgrade, the C is not worth it, and I think you run into diminishing returns with the A upgrade....