I've gotten by with hats, balaclava and neck gaiters thus far but the various down hoods out there are starting to look pretty appealing. For the folks that have tried them from warbonnet, hammock gear, or the Jacks: any pros or cons with one design vs another? I think the shock cord under the armpits would annoy me on the hammock gear model but I've never been let down by their down. How cold have you been comfortable with one and just a light beanie underneath? I wouldn't think it would pose any condensation concerns beyond what a sleeping bag does but any issues in that department anyone has run across?