I performed the Tim C mod on my VK. With a lot of help from our own Fullerplast. A very cool guy. The mod really does open up the amp. It sounds more like a traditional fender now. It also has more headroom. I'm not sure I like this part. I'd suggest anyone who things their VK sounds a little tinny or congested give it a shot. Be careful though. There is NOT a lot of room for soldering. I have one thing to fix on mine. Everytime I hit a B anywhere on the neck I get a buZZing in the backround. I cant tell if it's electical or mechanical......Oh well.