I have a 2016 SG Standard. I was having G string tuning issues tried everything, nut sauce, filed nut, replaced nut (professional luthier). G string would still go flat and stay flat on after a big bend. I purchased the String Butler from Amazon and it solved my tuning issues forever. It stays in tune for days. Highly recommend the string butler, only takes a few minutes to install and works. It is a bit pricey but $44 is a small price to pay for a guitar that stays in tune.