All strings:Drop & half down tuning
|------------------------------------------------------------------------|
|------------------------------------------------------------------------|
|------------------------------------------------------------------------|
|----------------------------------------10--10-10-10-10-----------------|
|-------5---5-5--5--5--0---0-0--0--0--0--8---8-8--8--8--5--5--5--5--5--5-|
|-------5---5-5--5--5--0---0-0--0--0--0--8---8-8--8--8--5--5--5--5--5--5-|
I think is the best.