David Grissom | Developing his signature tone, his PRS Guitar, & Sessions with John Mellencamp

David Grissom | Developing his signature tone, his PRS Guitar, & Sessions with John Mellencamp, Episode #14 SUPPORT The Rig Doctor Podcast PATREON - https://pateron.com/rigdoctor PAYPAL - https://paypal.me/rigdoctor STORE - https://vertexeffects.com/store FOLLOW The Rig Doctor YOUTUBE - https://youtube.com/vertexeffectsinc INSTAGRAM - https://instagram.com/vertexeffects FACEBOOK - https://facebook.com/vertexeffectsinc WEBSITE - https://vertexeffects.com Rig Doctor Approved MATERIALS https://vertexeffects.com/rig-dr-recommended-pedalboard-materials CONTACT The Rig Doctor info@vertexeffects.com