4.5 mile hump today with 74 lbs, with my Kifaru Timberline internal,

The last stretch my quads and hips were really sending the surrender signals……….

Generally speaking, do you believe a Barneys External frame would be a better choice for this task?

In about 7 weeks, headed out and looking like I’ll be walking in about 10 miles with a full pack, figure 70ish lbs, maybe more maybe less.

Love my Timberline2, but today raised questions.