I ran a 2.5 Shorty DD Max-Grip on the rear last winter, and seriously will mount up another this winter. It's not high volume I dont think, but paired with an assegia in the front, I could keep going through mud better than anything else I tried, while maintaining good dry weather grip too.I've been using DHRII as a winter tyre - it is good at not holding clay / mud. It's also high volume, which I like. I don't think it is a great grip for climbing and braking, as many youtube reviewers state; I actually wonder if many of the reviewers are just repeat the marketing blurb. I'm not sure I trust many youtube reviewers anymore. I've found the dhf much better on the rear for climbing and braking. I won't be buying dhrII again. Love the assegai on the front all year and dhf on the rear for the dry. Will have to find something else for the wet months on the rear. Might even go assegai rear in a harder compound; just wish they were higher volume.
The shorty was toast after 6 months.
For now I'm running e-wilds in summer, and assegai front, shorty rear in the winter.
I tried running the Shorty up front and absolutely hated it because of the large transition zone.