After inspecting my new EB bag I may send it back instead of re-doing the draft collar. The main reason is what I feel is the lack of sufficient loft. It's almost like a Mountain Hardware type of "modest" loft.
I have a suspicion that EB uses the same shell and baffling for both the Karakoram 0 and the Karakoram -30 bag. If this is so the Karakoram 0 has a "looser" fill, which is more space to heat and likely more heat loss from convection around the looser fill.
To me a western Mountaineering/Feathered Friends type of very puffy loft is good because it means less shifting of down during use. Less shifting means less heat loss due to convection.
Despite the high price and despite wanting down with a DWR treatment the standard WM Lynx Long is looking better and better.
