Watch the Bm, A, D Vamp online guitar lesson by Brad Carlton from CAGED Cracked
Now let's look at moving the forms around a bit. Try taking any progression and playing it in any of the various positions available to you. Repeat same with arpeggios and fills. Note how the same "notes" generate different textures when you transport them to different positions. Add that feature to your selection criteria.
When comping using the CAGED system, you'll find that moving up and down the neck, as opposed to staying in position, will produce an endless variety of ideas for fills and rhythmic variations.
Jam Track: E Major