I know I'll need some insulation for my HH for anything other than summer use. Looking at their site, the newer 'Super Shelter' is an open-cell foam insulation in silnylon.
Here, almost everything I read tells me not to use a waterproof material for an underquilt. And almost everything I read says to use either down or a synthetic lofted insulation. One reason given on the HH site is that is lofted insulation is used, it has to be quilted to keep it in place.
Which leads me to a couple of questions.
Does anyone have the HH underquilt and how does it perform?
Should I use a silnylon material if I do make an underquilt?
Has anyone, rather than stitch the insulation in place, used some type of a
spray adhesive to keep the Polarguard from shifting?
Do the 'V' shaped cuts in the KAQ pattern give enough curvature to the underquilt that it fits snug or has anyone tinkered with this pattern for a tighter fit? (two small cuts/side rather than one bigger one, etc.)
It's almost time to set up that old, grandmother-inherited sewing machine and have at it!