As is, it behaves exactly as srd states it should (tested). My complaint? Well the feat needs Power Attack as a pre-req. It is a straight -AB/+dmg boost. Many other skills are just better picks for damage (specialization, crafting, etc). One of the biggest thrills of power attack is 2h benefits. (ignoring the super-cheese of Fragarach, etc.) And in higher levels you need other feats such as Quick Swap and various ranged feats to be a good thrower. There are 2 times throwing weapons are 2H: spears for normal and javelins for small creatures. I think the feat should be 2x damage in these cases. Otherwise ...why would you pick these weapons. Imho, the feat is not good enough to pick normally, but could be very fun for a spear-thrower. Or small creature throwing a javelin. TLDR: Just because srd isn't imaginative enough to think of this, doesn't mean it can't be a thing in ToEE. (full disclosure: I have a halfling stormlord javelin thrower and this feat would be attractive if 2H).