I'm hoping this winter we will hear from some users pushing various AHE quilts to their maximum ( or minimum ) whatever that is. Based on my experience with Climashield in weights from 2.5 oz per sq.yd to 6.3 oz.sq.yd, it just seems to me that these quilts- which use 6 oz(per sq.yd) wt. CS - are rated extremely conservative.
Then again, there are many elements involved in an UQs warmth other than the insulation inside it, things having to do with fit and seal and draft resistance and compression of loft ( IOW dif cut ). So I am looking forward to seeing how far folks can push these quilts- rated to only 30F - this winter. Get to it, boys and girls!
For I consider that the sufferings of this present time are not worthy to be compared with the glory that is to be revealed to us....that the creation itself also will be set free from its slavery to corruption into the freedom of the glory of the children of God. For we know that the whole creation groans and suffers the pains of childbirth together until now.