Another vote for the Pop up. I've used a crew cab with the nice frame for about 10 years now. It's a great hauler, but for a day pack I've decided its base weight is unnecessary. I tried a Metcalf for awhile but the bag design and 5 miles of straps didn't impress me. This fall I switched to a pop up 18, which has proven to be the ideal situation. My daypack weight with essentials runs 12-15 lbs all up and I've hauled various meat loads so far this season weighing 50-92 lbs. For day hunts, I see myself using just the pop up from here on out.
