Any such boot exist? Beartooth I have but get cold feet. Crispi Wild Rock plus is a little stiffer. Want good ground feel for still hunting. Would love 600 or 800 Beartooth.
A little stiffer than the criteria you've got here, but I have a pair of Granite's (Schnees) that I like quite a bit with 600g of insulation. I think it's a flex 3. I woke them quite a bit during the late season last year and didn't have any issue with ground feel, though there's some obvious subjectivity there.