I’d likely go with Red’s or Bridgestone YLC’s..something just a little harder. Your 206 just doesn’t need any more grip then a hard 7.10. We run BS YLC’s on both of our CIK 206’s. They work fine, and will easily last a season.
Yes, enduro’s do run in the rain, but most competitors won’t. Usually it’s only folks who run CIK chassis classes race in the rain, like your CIK 206, Tag’s and shifters. Whatever rain tires you currently have will do fine. We have Bridgestone’s.