Hence also why Doug feels the need to mod them now The V3's a/d is weak and way over rated IMO.
As I've heard the story, he's tried and tried and tried to improve the V3, but only very recently identified the tweak and components that improve the ADC, as opposed to simply changing it one way or another. I think that speaks to its strength, as he usually comes out with mods very quickly for gear that <1> is lacking in one way or another, and <2> he's willing to work on.
Personally, I believe he could modify and improve each and every piece of gear we run - 722, the new Korg units, Mini-MP/ME, etc....you name it. The fact that he's modifying the V3 doesn't necessarily speak to the V3's weakness, since
all the gear we run in the field has weaknesses. Rather, it indicates the V3 already sounds mighty fine and has superb design and construction that allows for easy tweaking (finally) to achieve his "signature" sound.
The V3's ADC is better than any other field ADC I've heard and is way
under rated, IMO. Fortunately, there's a whole range of reasonably affordable, quality gear available that achieves superb results, so we may all choose what sounds best to our ears.