Gap Training Advice for Barry Roubaix

I will probably run the 40mm G-One Bites that (roll almost as fast as the regular G-Ones but have some slightly bigger knobs), If the weather looks suspect then I will probably switch to the 42mm WTB Resolutes I was planning for Coast 2 Coast to better handle the sand and muck as the G-Ones don’t shed it very well and pack up.