It is: I've built two of those as well.
How do they compare to the VP312's?
I haven't had time to compare them side by side unfortunately, but in itself I am very happy with it, feels clean and crisp and works very well to push a bit. I've mainly used it on guitar and snare so far.
Hope this isn't hijacking the thread to talk about pres! What DOA did you go for? I've got Gar2520's in my VP26's and the VP312's are getting the Gar1731's. Plan is to use the VP26's on the shells and 312's on overheads. The 1731's are supposed to be a bit smoother sounding.
I went for the Gar's as they were cheaper. I also enjoyed building them. I had read that they were fiddly to build, but I didn't think they were too bad.
The 312's have arrived in London, I reckon by the time they get through customs, it'll be next week.