I can say what didn't work well. I ordered the Xicon's that JH specifies but Digikey was out of stock on the 10k so I picked up some Panasonic resistors from Mouser. I wanted to build the unit nearly stock at first to get a handle on the sound before investing in boutique resistors.
After it was up and running it was quite noisy. This was not what everyone else was saying about the Cornet. About a week later the back ordered 10k Xicon resistors showed up and since I had been unable to quiet down the preamp I swapped them in, thinking there wouldn't be much change. I was surprised and happy to hear that it was much quieter. I took a measurement and it was 12db quieter with no input. It appeared the Panasonic resistors were much noisier. A friend built his with the Riken Ohm resistors and it sounds very good. It actually sounds very good with the Xicons but the Riken's seemed to be cleaner, especially in the upper frequencies.
Mike G.
