I realize this is an old thread but figured I’d post anyway. I’m still using my old Kifaru slickbag 20 degree. It still works great. I use a Thermarest x therm pad thats also warm.
My hunts I use it on are primarily later season gun hunts. I really like the synthetic bags. I’ve dried so much wet stuff out in it and been really impressed. The outside might be wet from transferring the moisture out, but me and the inside are dry in the morning. My sleeping bag is my last line of defense against being cold and wet. I like synthetic despite its weight and bulk disadvantage. I will use down puffys, but sticking with my synthetic bag.