I have been looking for a 25-30 deg bag made for someone that is 6'3" and 240#. I am looking at the WM MegaLite and wondered whether there is any point in getting the 2oz overfill. Is there enough space in the baffles for the extra down to increase the loft of the bag? If so, how much would this really affect the comfortable temp range of the bag (I realize this is a subjective question)? The AlpinLite is the same size, the only difference I see is that the Alpinlite has a full down collar, and there is 8oz more down for 10 deg lower temp rating (long size). Would this mean that I could only expect the 2oz overfill to lower the comfort range by 2.5 degrees? Very curious to see what everyone thinks. Thanks for any input you can give me!
Tim
P.S. If anyone knows where you can get one of these bags with the overfill please let me know. I can't find this info on their website; can't even find a way to contact them to ask, other than a snail mail address.

