In my experience, tripods stable enough for large format are too heavy to strap them to the back or the sides of a backpack. It pulls the pack out of shape and you backwards. Just try sitting down or standing up with that combo! I carry my wood tripod on a wide nylon strap separate from the backpack, occasionally shifting it to the other shoulder or carrying it across my neck. Essentially like a machine gunner would carry his weapon. It's a forced march anyway!