Despite having pretty good success with the HH SS, the bungee'd opening makes me nuts. On my last hike I untied the bungee and as expected it gapped and allowed too much air flow reducing warmth. Temps were mid 50's so it wasn't much of an issue.
Has anyone tried putting Velcro or omni tape on the SS opening instead of allowing the bungee to close things up? I find that getting out of the HH already requires me to use my hands to separate the opening, I could just reach thru and undo the SS as well.