If I were injecting, why would I be missing any?
I started in USUM, caught everything in beast balls, from all the wild mons, to all the ultra wormhole legendaries, to at least one of each of the wormhole shinies. All in beast balls.
Since beast balls were obviously harder to come by pre-CT in SwSh, it's been slow. But between trading and getting BBs with ore now, I'm almost there.