The suspension, it came to me, adjusted just how I would want it, so far that I can tell anways. So I have not had to make any adjustments, but it is adjustable should I need it. I have loaded the pack down, let me just say that I wont own another pack without load lifters, the difference was immediate night and day from any other pack I have tried on. There was no weight at all on the top of my shoulders, no pinching, nothing. All of the weight from the straps was focused on my chest and forward of my collarbone, I cannot say enough good about it. One word of advice though, when loading and unloading the pack from your back all the weight should be taking off of the load lifters, by releasing tension on the straps. Other wise you when pickup on the shoulder straps all the weight will be focused on the loadlifters on the actually bag, and they weren't meant for that particular load. When done correctly the load lifters should have slack on them and when you pick the pack up to put it on all the weight from the pack is focused on the shoulder straps that are securely mounted to the frame.
There is an area in the mid back for ventallation, and plenty of strap for lots of size adjustment, and this pack is silent. I dont think there will enough room between the straps and the buckles for me to attach my blackhawk Serpa holster to the pack, but I hadnt been able to do that effectively on my Sitka bivy 45 either. As I stated earlier there are 2 sleeves on each hip harness and the pack shipped with a removable pouch, that would be big enough for a GPS or a small rangefinder. Its not much to write home about, but it is there, it just doesnt seem to go with the flow and design of the rest of the pack. I would in the future like to see Jason offer more accesories, maybe a pouch for the shoulder harness. The other thing I would really like Jason to offer would be long pouches or cells that could be attached to the pack for extra capacity, if need me. This to me would be more beneficial than him offering a slightly larger pack in the future.
With regard to weight, the frame is very light, I dont have a scale, so I couldnt give you a number right now. I choose this pack over the MR longbow, so it was a weight savings more me, for what I have, if this is what it must weigh, I wouldnt be willing to loose any of the pockets or features this pack has to save anymore weight. Its incredibly light, regardless of actual weight vs advertised. There are some areas to shave weight as well, the meat shelf is removable, and something you could do without, if you wanted to save the weight. There are some straps that could be cut down without sacfriceing any expansion or modularity, in my opinion as well, mainly the side compression straps.
I havent been able to get out and get a good hike on with it, but intial impressions are that it rides very nicely puts the weight were I want it and where its most comfortable. Load lifters are awesome. The wrap around hip belt doesnt seem to pose any issues, I cant feel the bolts that attach the suspension to the frame, and its a pretty solid pack, I dont feel that the Carbon Fiber design comprimises it in anyway.