BlackCat
American Greaser
http://guitarsworlds.blogspot.com/2014/08/5-things-youd-better-know-if-you.html
5. Avoid The CAGED System
Even though this system of playing guitar scales is quite popular among some guitar teachers, it is NEVER used by world class virtuoso guitar players because it places a huge number of restrictions on your ability to freely use scales in music. Without writing a 100 page dissertation about all the flaws of the CAGED system, its single biggest weakness is that it is not based on how scales ACTUALLY work in music for all instruments and is instead intended to create a shortcut only for guitar players by exploiting several isolated and completely illogical visual shapes on guitar (that, by the way, only work in standard tuning' and become totally useless in drop tunings or open tunings). The result of such a crippling system is that guitarists remain forever restricted in the way they can use scales musically and cannot play scales all over the guitar on the same level as other musicians who have a real and complete understanding of how scales are supposed to work in music. Fortunately, the complete and most efficient ways of practicing scales on guitar are not any more difficult to learn and understand than the (much flawed) CAGED system.
5. Avoid The CAGED System
Even though this system of playing guitar scales is quite popular among some guitar teachers, it is NEVER used by world class virtuoso guitar players because it places a huge number of restrictions on your ability to freely use scales in music. Without writing a 100 page dissertation about all the flaws of the CAGED system, its single biggest weakness is that it is not based on how scales ACTUALLY work in music for all instruments and is instead intended to create a shortcut only for guitar players by exploiting several isolated and completely illogical visual shapes on guitar (that, by the way, only work in standard tuning' and become totally useless in drop tunings or open tunings). The result of such a crippling system is that guitarists remain forever restricted in the way they can use scales musically and cannot play scales all over the guitar on the same level as other musicians who have a real and complete understanding of how scales are supposed to work in music. Fortunately, the complete and most efficient ways of practicing scales on guitar are not any more difficult to learn and understand than the (much flawed) CAGED system.