I have the Bear-i-Kade Weekender. As Pika said, if I select food strictly what packs tight, I can get 10 days in for myself. This is at 1.3 pounds per day, 2,400-2,600 calories per day. Everything is REALLY squished! I also have to re-pack everything in thin zip-lock baggies.

Remember, that on a 10-day trip, you can keep out lunch and dinner the first day and I only plan on breakfast for the last day. For the last day's lunch I just eat whatever is left over. So a 10-day trip is really 9 full days of food that has to go in the cannister.

There is no room for toothpaste, sunscreen etc until the second day. I have done 12 day trips where I stay at campsites with bear boxes the first two nights.