It isnt the FREEZING of the hops that benefits them... it is basically cold storage. I mean, if you pull out a sack package of hops and measure out what you need, the HOPS themselves are what, maybe 40F? For what... 10 minutes? The difference between storing them at 20F and 40F over oong periods is actually extremely minimal.
You are overthinking this.
Leave them in the 1lb package, break it open when you need them, then reseal them in other bags, or BAG if you like at that point. Mine are in vacuum sealed mason jars, I pull them out, open them and scoop out what I need, then vacuum seal again and place in the freezer.
You wont lose anything by just placing the remainder of the full pound in ONE ziplock bag. Hops arent THAT delicate.