I studied the Caged system for scales on guitar and find it useful when I'm doing scales over chords, but when I'm doing Pentatonic scales, I only learned Major and Minor with roots on 5th and 6th strings. I'm interested in learning more but I've never heard about CAGED For Pentatonics.
(Expansion of comment)
The point of CAGED is to not see the C-A-G-E-D chord shapes as separate, but as one big interlocking chord shape that covers 12 frets - and then repeats again. This allows you to not get stuck in one little 'box' when playing chord tones up and down the neck. The idea is the same whichever chord type you're playing - Here's an illustration from rockprodigy.com of how it relates to the major and minor chords, for example...
Once you are comfortable playing chord tones, it shouldn't take too much mental gymnastics to work out where each note in a whole scale is, based on where the chord tones are. As with the major and minor examples above, the CAGED 'concept' remains the same - you just have to teach yourself to 'spot' all the intervals in a scale - e.g. C major pentatonic: