Hi again, There were other reasons for selecting this tuning. I placed a value (maybe too high?) upon having open strings in common with the standard guitar and orchestral strings tunings. The low E and low A are common to the guitar and Dbass. The high E remains for guitar. The high A is common between EAEA, CGDA, and GDAE. Also, I wanted it to be as effective as possible to drop to low C with extensions for violin, cello, and Dbass (I've come to think of instruments optimized for EAEA and extensions as the violi, viole', and Violo.) If I had the money of a Gates or Buffet, it would be fun to create a school to produce an orchestra and chamber groups with a new tuning and 3 types of instruments instead of 4. A variation for guitar was E-E^1oc-E^2ocs-A^1oc-A. This would place the higher strings in the center and produce a v^v arrangement. I couldn't perform a crude test with my standard tuned guitar so I have no idea. In a seven string it would run Ev1oc strung close to E-E^1oc-E^2ocs-A^1oc-A-Av1oc EEEEAAA. I've wondered about creating a slight bow to the guitar bridge to raise the high E in the center. I've wondered if it would be possible to run the low E so it drops over the edge, runs along the side of the board and is accessable to the thumb or hooked finger ;/ Anyway, I tend to begin with a conclusion, create as many workable propositions as I can, select my favorite props, and then spend most of the time trying to eliminate the less favored propostions. This makes trying to track and remember my propositions and conclusions...interesting ;) Later :)