His main backup for is a natural-finished PRS Custom 24 that he acquired before “Ol Blue.” It was upgraded with a set of Seymour Duncan SH-1 ’59 humbuckers. Both this and “Ol Blue” ride in standard tuning and all of his instruments use Ernie Ball Slinky .010–.046 strings.






















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![Rig Rundown: Russian Circles’ Mike Sullivan [2025]](https://www.premierguitar.com/media-library/youtube.jpg?id=62303631&width=1245&height=700&quality=70&coordinates=0%2C0%2C0%2C0)


























