I can see myself buying another pack before too long.
For now around 3,000 c.i seems like my sweet spot for a 7 day trip. With extra water, I'd be close to maxing out the Zimmerbuilt.
Zimmer claimed a max of 35 pounds. For 3,000 c.i. it ran $230 + $30 for the stays. With a mesh back panel, I had it up to $275. A pretty good deal for a custom pack.
After staring enough at the different size Porters, I realized that by looking at the position of the logo, I could tell the difference.
From what I see...
The width on the 2400 and the 3400 are the same. The 3400 has taller stays and collar, with one more compression strap(3). The 4400 has the same stays as the 3400 with a taller collar. The sides are wider on the 4400. Plastic stiffener used in back panel of 4400.
the 2400 is 26 ounces. With a 4.2 pocket it would be 30.2 ounces.
The 3400 is 30.6 ounces.
The 4400 is 31.1 ounces.
Less than a one ounce difference.
Prices are $265 for a 2400 ($295 with pocket), $295 for the 3500 ($315 with custom plastic stiffening in backpanel), and $325 for the 4400.
Thirty dollar difference.
The 4400 should compress the same as the 3400. The only difference would be with the 2400 which would roll down more.
Not minding the slack in the top compression strap, with the 3400, I wouldn't have to depend on a front pocket.
With the compression straps, the 4400 is virtually the same pack with a 0.5 ounce penalty. It can also be loaded several ways and could also swallow the grandkids sleeping bags on occasion. Adding extra support to the 3400 would leave only a $10 price difference and even less of a weight difference.
I'm thinking why not the 4400 with the thought of getting a Zimmerbuilt when I get my base load down? I also wouldn't have to compress my seeping bag, if I didn't feel like it.
I know the temptation to over pack, but I'm past that. I mean other than a Thermorest cot and a coffee press and something else I can't do without...