In reply to due:
'spring' apparrently (and annoyingly).
MHW is in a good pack era right now. for years they were a backwater, but are now surging ahead.
i fiddled with a cilo at 80L, and despite liking them at 50L and 35L, found the MHW to be more useful, lighter and carry weight better at 75L. being 3 times cheaper too, ive considered getting 2 and taking the scissors to one for a purely silly-light version.
one thing i like with the sth col is that tho the big dyneema pocket is questionable for many things, its sweet for shoving ice tools into. MHWs tool attachment things are already best in class in my opinion (its the most glove friendly pack ive ever found), but a big puncture proof pocket is even better.
the 2014 model diverts from that tho, but has other features to make up for it.
yes, ive spent too much time thinking about it, and when i blew out my old one i got involved in some R&D when they gave me a new model (ease of replacement from the company alone is a good reason to get one), but if youre slugging 50% body weight loads it pays to make friends with your gear.
rab packs im keen to check out. they seem a touch n go company these days, so hoping they are more touch with them.