Factors include compatibility with handling equipment (winches, cranes), storage space requirements (especially for collapsible models), and ease of baiting/deployment/retrieval processes used by your crew
Upturned hooks run well through the weeds and are relatively snag proof
Put these items on top: Any items that you might need often, or in an emergency, should go to the top of your pack your best hunting knife, raincoats, rain jackets, toilet paper, maps, GPS, water bottles, etc
Customise your bag to suit you and make your climbs even better
The hip belt is pre-curved with pull-forward adjustment straps and has hip control straps connected to the bottom corners of the pack for lateral stability
See our Tying the Crystal Schminnow fly pattern page for basic tying instructions and more information on the fly