Yes. He gives Wide 7. That automatically makes it better. It's slottage also isn't much worse (4 and 3) compared to Safi's maximum of 4 and 4. It has higher base blast attack too, comparable raw, and a decent chunk of sharpness before yellow. Technically, he loses out on the 0% affinity, and the fact that through awakening, Safi's Gunlances have variable status and better sharpness (since purple doesn't actually matter for gunlance, at least not as much as other weapons). But in the end, Wide 7 is absolutely insane. It beats LONG 6 in charged shells (I think), which tells you just how powerful it gets with Artillery 5, which his armor gives. In the time frame difference between a Safi Gunlance falling to Yellow, and Lightbreak falling to yellow, with the same builds, Lightbreak fits in FAR more damage. It's also still quite comfortable. Even where it does lose, it doesn't lose by much.