I've read a lot of threads about planning and packing for air travel, but I still am faced with this basic conundrum: using a rigid or semi-rigid rolling case for carrying the LF gear on the plane, but wanting to use a soft backpack case to tote the gear around once I am on-site. I feel like I should have the heavy protection for the camera and glass when it gets smashed around in the overhead bin, but that kind of case just won't do when I'm walking around extensively for shooting.

So, how do I solve this conundrum? Do I take both, and switch from the travel case to the backpack once I land? Or are any of the backpacks robust enough (and sized appropriately) for stuffing in the overhead bin and also for walking around with the gear on the ground?

Thanks in advance!
Dan