Jimbo, I think the internal frame idea is for the guy who doesn't know how to pack. How many of those long legged birds does one need anyway? The CCS Pioneer has plenty of room for me. I probably bring too much myself. Good thing it isn't bigger. I'd wouldn't stop till it was full. I know a guide who carries the big Ostrom internal frame pack, he know Ostrom too. Email me and I can cc: you guys together if you like.