OK, time to hijack... what is so heavy in your backpack that you must leave it at the base of a 3 pitch ice route?
I know this is almost the norm, but all I have in my pack after racking up is my belay jacket, a bottle of water, a tiny 1st aid kit, and some munchy munchies... probably weighs less than 7 pounds... (Wild Things Ice Sack)....
So what is the benefit of leaving it on the tracks on a Grade 3 ice climb? 5.10 rock I can understand, but grade 3 ice? Just sayin’.... I would like to see ice climbers lead more with packs on... and less freezing cold hungry dehydrated seconds topping out on Standard...
I don’t even notice my pack on Grade 5... ice climbing ain’t rock climbing...
IMO to many new ice leaders own/use giant backpacks designed for hiking... not climbing...