Maybe I didn`t make myself clear in my original post. I`m NOT recommending using CB to replace hands on practice on the guitar. I think the OP made that clear as well. It should just be used as an adjunct to help learn guitar, not as a crutch. BTW, I`ve never used CB so I`m not that familiar with it. Maybe it`s useful and maybe it`s not. I`m thinking it may have some value for beginners to help with muscle memory, but probably of little value for anyone beyond that. Again, I refer back to my training wheels analogy. It`s just something to help a beginner get started until they can balance on two wheels.