*Chris* wrote:I guess my only addition is that personally, 30L is not enough for ice climbing. Puffy coat, extra gloves, rope, rack, pons, tools, food, water, helmet, and sometimes a stove. That's a lot for 30L. Good on you though if you pack light! My view is that you pay a very small weight/price penalty for having a pack larger than needed most of the time. However, you pay a big penalty in utility when your pack is too small. Larger packs tend to be better featured for comfort... all else being equal. 50L is about right for me. Hanging crampons, water, gear, and helmets on the exterior of a pack is a recipe for broken components. and getting snagged on every thicket you bushwack through. YMMV.
Agreed. I tend to bring a lot of extra clothes with, which fills up a pack quick.
Both Nathan and I have the BD Predator packs, which are amazing ice packs. I have the 45L (which MEC never sold and BD didn't make for long), Nathan the 50L, which were both very generous in their sizes, but they also compress well which means they aren't over whelming when I use it for sport climbing in the summer.
Reasons why I like the Predator so much is that it has a nice proper sized crampon pouch, which is going to be hard to get on a smaller pack (I wouldn't even look at that BD Speed), a great system for your ice tools (accommodating all varieties of leashless tools) and a helmet panty at the top of the pack for a neat way to store your helmet (which your not going to find on any other pack anyway).
Looking at the MEC site if I was going to get a replacement for my Predator I'd look at the MIssion, but I would definitely look around a little more first to see what else might be out there.