I love Swampthings on my DH bike, but unfortunately Maxxis doesn't make non DH versions. I'd like to find one tread that comes in ~700gram and ~900 gram versions with similar ride characteristics - awesome in the mud yet breaks loose very predictably on hardpack. A lot of my winter riding involves deep clay based muck which transitions right to hardpack then back to muck. Medusa's may fit for the trail tire, but the side knobs look like they may fold over - anyone tried them? HR2s let go too suddenly for my tastes. Conti Barons 2.3s look very promising as an AM tire but they don't make a lighter version for trail riding. Conti Mountain King 2s look promising as well, although I'm not sure those side knobs would clear that quickly.