Fly the Team Iceshanty Flag! Iceshanty Proshop
I've never used tip-ups for rainbows. Only for burbot and pike. But there's not much to it. It's definitely not rocket science. Normally I run braided line with some split shot and a bare Gamakatsu hook. But for rainbows you might want to run mono or even maybe fluorocarbon with a jig at the end like an aero jig tipped with shrimp, eggs, powerbait, or herring. My question for you is, why use a tip-up for rainbows? Why not just jig them with a regular rod?
It's more for the Salmon I just said bows too because on JBER its really nothing more than bows and Salmon.
You do know the salmon are just as small as the rainbows right? Not trying to insult your intelligence if you knew that already.