Probably 3-5 days would be typical. I have heard with the 7800, even though bigger, you can tighten the straps and get it smaller if there is extra space. This true?How long of trips are you planning on using it for? I have the 6000 and it’s more than enough for a week trip or possibly longer. Also I’ve found the bigger the bag the more gear you tend to take.
Probably 3-5 days would be typical. I have heard with the 7800, even though bigger, you can tighten the straps and get it smaller if there is extra space. This true?