I guess if I was only spooling with 100 - 125m I'd consider backing, but again, because of the issues of a fine diameter line falling between the strands of a much larger diameter mono on a spool the size of an Alvey (small diameter spools don't have the same characteristics so much less a problem) I'd always use braid as my backing
Heavy Braid Capable Handles 6580 lb braid with topshots up to 80 lb for tuna, yellowtail, and white seabass applications beyond the rated mono capacity
Smart organization: 16" laptop compartment with external zipper access Top zippered pocket for quick access to essentials Front shove-it pocket for a jacket or water bottle Spacious 40L main compartment works great with packing cubes, making it easier to stay organized on multi-day trips Bonus: Attach a compatible Osprey daypack to the front using the compression straps to carry both a carry-on and personal item at once
They have the space for all your essentials but wont weigh you down with the comfort & functionality for long days exploring
In fact, I specifically put 100 yards of mono on top of my braid for casting iron. Carson utilizes a top shot of 100 yards of mono also
The PST Cicada can be cast under overhanging trees to mimic a cicada falling into the water