I made a G4 about 5 years ago------it has served me very well! I really like the big mesh pockets on the outside (I wouldnt own a pack that doesnt have them) One thing I didnt like, was the way the g4 is designed to put your sleeping mat on the outside, between your back and the pack. I got around that by simply putting the mat on the inside, (or not bringing one at all!) It carrys a load very comfortably up to the mid 20 lb range, after that it gets kind of uncomfortable. Its really light weight, but you need to handle it alittle different when you take it off/put it on(dont just sling it around, be careful when lifting etc.) Anyway, thats been my experiance with the G4. Good luck!
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