The lowest dew point I tried AF was around 40. I plan to use it until it gets to be sub zero temps. I suspect at this point the glycerin may cause dryness like it did for me last Winter in my stylers. I won't know for sure and I'll still try it with a heavier LI and see what happens. You're right though, in general coarse hair does well with emollients. However, humectants don't need to be avoided completely you just have to find the right formulations for your own head. Glycerin and Honey are humectants and they're the only things that work to keep my hair in control during the Summer when dews are 60+ lower then that forget it it weighs me down.