One of the members here questioned my estimate of the size of my Crown compared to the GoLite Pinnacle (I had thought that the Pinnacle was much larger, and the Crown was comparable to the Jam), so I stuffed both packs with two of the same winter sleeping bags (being careful to apply the same pressure when stuffing). To my surprise the Crown with extension collar held the same amount of volume, plus there was fabric to spare in the extension collar to allow the roll top closure to be folded over three times and cinched down the sides for the proper closure. This effectively makes my Pinnacle obsolete. What is wonderful about the Crown is that my original estimate of it being about the same size as a Jam was perfectly right... just roll down the roll top closure, cinch it, and you've got a much smaller volume pack that doesn't flop around and collapse. Very versatile for when carrying lots of extra food and for long term international travel. I really, really like this pack. And I don't say that very often. In fact, of the few times I've written about a pack here on BPL, this is the first time I've said something positive! (shelters are a different story)
I'll use the Pinnacle, with hip belts and shoulder straps lopped off, as a sack for my Arctic 1000 harness. And I may sell my unused Blaze, though I'm not sure yet. It's nice to get my gear closet down to a really simple, manageable level.