Finished the mod. I need to mp3'ze some samples, and download the pictures. Basically, swapped teh stock 32mm K67 style capsule for a C12 clone capsule from my group buy. I eliminated the coupling capacitor and connected the capsule + lead directly to the FET, and connected the polarizing circuit to the backplate of the capsule. The coupling cap is usually recommended for upgrade on these, but it isn't necessary with a unidirectional capsule. Some of the before recordings wound up mangled some how, so I'll have to loop some of it. This is an easy mod. I used the stock mount and just drilled the holes a bit larger to fit the new capsule. Also had to file the head basket rim a bit to get it to fit over the new capsule. Sadly, I destroyed one of the 1gig resistors whilst desoldering. (Had to swap irons too...)
But the mod is eliminate one cap and one resistor, change capsules, and reroute the capsule wiring.