going over to the.....????
After having both, I think it depends on what type of music you are doing. The Ultra XL is by far my favorite module for high gain metal. It cuts through very well and has excellent clarity. Even though the V2 has a good amount of gain, it doesn't have as much as the Ultra XL and the amps tone is a good bit warmer. The V2 also seemed a bit tighter than the RM100 BUT the KH2 and KH3 offer similar tightness if you need it. I did feel that a Tube Screamer was needed in front of the V2 to give me the crunch I was after, but that's fine with me because the tone was killer.