>>1772815Because the center of gravity is lowered so you need to pull the weight to your shoulder and hug your back or it will pull backwards if you hang all the weight on the waist/hips.
>>1772828You want the center of gravity high up so you can lift with your body as straight as possible, instead of leaning forward.
Because of the generally long narrow shape of an internal frame pack you're going to end up spreading the weight through out the bag, you can only fit so much at the shoulder area.
This is why old external frames have the pack high up and extend upwards, leaving the bottom part of the frame empty so you can attach a light sleeping pad or sleeping bag (if big), tent should be on top.
>Lash a bear can to the very topThat's why you use an external frame.
>>1773276What's chopped frame and what backpacks do you guys use?
