Hello Moresound,
I started offering this mod not very long ago, so it usually takes some time until people start posting results/impressions/sound tracks. But since I got quite a few inquires and mics done let's hope it will happen soon.
Quite a few times I was asked if this mod can be DIYed. While usually I am very open with posting mods, the C1000S is different, as it involves rather complicated machining of a new stand-off/holder for the capsule (and you cannot do it without a lathe). Also, since the PCB is full of SMD, the board needs re-drilling. There were a few versions of the board and the location of the crucial capacitor to replace is different. Also, since the traces are very thin there is a danger of damaging them, so unfortunately, I think this mod is not suitable for DIY.
Best, Mark Fouxman
Samar Audio & Microphone Design