WM Highlite vs Summerlite

Although academic, my question is why 32 degrees for the Summerlite and 30 degrees for the Megalite?
Same loft according to WM; Summerlite less width, no collar; Megalite, wider, half collar. it just seems like there would be no difference in temperature rating. The specifications would cancel out any difference. Their temp spec surely is "splitting hairs". Any ideas?
Thomas……….Vancouver,WA

Frank,
If you only sleep with the straps between you and a pad then they will seem long. In colder situations this is often t he case.

But if you run the straps under a sleeping pad the free end needs to reach back to the side opposite the buckle, with a little to spare, so you can pull on it to "tighten things up". And during the setup process when things are a little loose that extra strap comes in handy.

The under-the pad-routine is convenient as it helps hold the quilt in place.

Definitely give it a try before getting out the knife.

The Megalite has 12 oz of down fill and the Summerlite has 10 oz, more down equals warmer (lower temp) rating. One would think the narrower cut of the Summerlite would allow the 10 oz of fill to equal the wider Megalite with its 12 oz, but 2 degrees is really not worth concern IMO. If the narrow cut that WM uses on some models is a concern I would opt for the wider Megalite if trying to decide between the two.

I'm not sure this is relevant, but how do you rate a bag to 10 degrees, rather than 9 or 11. I think we need to accept that all these ratings are pretty subjective anyway, and only really comparable amongst bags from the same manufacturer.

Therefore someone at WM has determined that the Summerlite is "a bit" warmer than a Megalite.

Now if someone has a Summerlite they want to sell, shoot me a PM. I'm your man!!

Rod