For my Presets visit: https://johnnathancordy.gumroad.com/ As requested, I was asked about achieving a John Mayer kind of tone with the Iridium. You're probably going to want to use the "Round" setting, but also you're likely to want to pair up with a Tubescreamer of some sort. Here I try the Behringer Tube Overdrive (cheap end) and Keeley Tone Workstation (expensive end but I think designed for John specifically?).