here are some tunings i use on the guitars
I mainly use open E and I’m starting to use open G
Standard tuning E-A-D-G-B-E (Eric And Duane’s Guitar Beats Everything)
Open G: D-G-D-G-B-D (the most common slide tuning, EC’s favourite Dobro tuning).
Open E: E-B-E-G#-B-E (Duane’s favorite tuning, Delta Blues, stress for the neck)
Open D: D-A-D-F#-A-D (also with capo for open E)