I just want to give you a look at this very cool guitar invention. It was given to me by the inventor who is a good friend of mine that also is a hobby guitarist.
The Chordinero is a fantastic tool to play open chords with standard tuning. In this video you can see how I can adjust the open note for every string individually. The possibilities are many. One thing I find very cool is that I can use an open tuning and still access my knowledge of the fretboard in the higher register.