I wanted to put gut strings on my new plywood bass. I wasn't too sure, which would fit best, so I compared four possibilities. Which ones do you prefer? The diameters of the Efranos are: G: 215, D:270, A:240, E: 330 If you like my channel, feel free to support me on Ko-fi: Ko-fi.com/stringmatrix Or PayPal me directly: paypal.me/hervestringmatrix THANKS FOR YOUR SUPPORT! Do you know my String Matrix? You can compare MORE THAN 30 STRING MODELS ON MY WEBSITE: http://www.hervejeanne.de/en/string-matrix