[Autumn]

And that can be reserved for mutation which allows weapons like guns, daggers and bows to become martial weapons as well at the cost of their enchant, its not a simple matter of alternative stat weapons, regardless of whether your weapon scales 100% STR or 100% SKI, you're going to need SKI to hit anyway with a basic attack build, it quickly devolves into STR not being considered in a build simply because its 'not as worthwhile', STR is canned in favor of other stats such as DEF or RES, or absolutely maxing out SKI or LUC so that no weakness in a build is ever present.

Bamboo-bo has been a bit of a problem since GR, its not groundbreaking or broken, it doesn't deal more damage than any other weapon, but the stat spread allows too much versatility, and would very quickly become an even bigger problem in the future should a spear-based duelist come out, because it is a polearm weapon.

Chopping its scaling to 70/40 keeps it good, it just means you'll need a minor amount of STR to make it as good as before, somewhere around 25-40 STR would be ideal for the new scaling proposed, but it keeps you from being overly versatile as well.

The only other substitute stat I can see for STR would be GUI, and that would be after STR is (maybe) buffed to have HP given per point.