Quickly... The ones I have here are "my" mod, but I found Scott's mod and it's the same; I use different capacitor types and overspec a bit more, but same stuff really, although I definitely prefer metal glazed 1G to polarise the capsule and at the FET gate. But yeah, we basically replace all the funky stuff with good components.
I find my 012s too clean, so I replaced them with a pair of Calrec/Bridge 1050s. The 012's are very nice, as quiet as my 84, have very good headroom and are very linear when modified.
JP