From iceland last spring I didn't love back panel access for everything there. I had to set my bag down in a lot of wet/muddy places near all the waterfalls to get things out. So I've been looking for a bag with easy access to shoot out of but the sling and or change up could be that bag. But if I go that route I need to be able to carry that bag to where I'm going along with a backpack to fit ALL my stuff? Vlogging/making videos has complicated this because just shooting a small sling or the change up holds everything I need. But to bring all my kit to Iceland I need a backpack. I could put the sling style bag inside the backpack (and remove the insert) and just load it with a few smaller bags as well.
The backpack was bought to see if that style bag could work and do the jobs of both. Hold everything for the flight but then also be shoot out of with easy access w/o setting it down. It certainly can IF I can get it setup correctly but that's where I'm struggling.