I've built three of these. One with "norm" on both channels, and one each with High Gain Mod on Right / Left Channels. Works great, you just have to adjust your thinking about what "high gain" is... in this case it's NOT much extra. even the original Analogman KoT advertises the "high gain" mod as being only about 20% more gain. It's there, it sounds great, too. If you set the dips so that the side with High Gain is on 'distortion' mode while the normal channel is on "overdrive" mode, it is very noticeable. If both are set do "overdrive" not as noticeable and if both are set to "boost" mode, you can barely tell a difference.