Even with the changes, it's still a terribly powerful feat, that could impact every round of every combat for a charter that has it.
Conceptually, you seem to be playing with two things here:
* special weapons, physical objects that are more efficient than those generally used
* special fighting techniques, new ways to use traditional weapons.
For a feat, to me, only the second makes sense. If there are finesse longswords out there, one would expect them to be widely used in society. The game was pretty clear about the limits of finesse weapons, and so the feat should be a new technique for using existing weapons.
Every elf still might want it -- elven weapon training does not give proficiency with a finesse melee weapon, despite the race's dex bonus.
It also allows a rogue to have a wider range of weapons with which to sneak attack. I'd build rogues specifically around this feat, characters using a spear, or a quarterstaff, or a battle-axe.
For me, *That*'s worth the investment of a feat, and is stronger than many others already in the PHB.
Conceptually, you seem to be playing with two things here:
* special weapons, physical objects that are more efficient than those generally used
* special fighting techniques, new ways to use traditional weapons.
For a feat, to me, only the second makes sense. If there are finesse longswords out there, one would expect them to be widely used in society. The game was pretty clear about the limits of finesse weapons, and so the feat should be a new technique for using existing weapons.
Every elf still might want it -- elven weapon training does not give proficiency with a finesse melee weapon, despite the race's dex bonus.
It also allows a rogue to have a wider range of weapons with which to sneak attack. I'd build rogues specifically around this feat, characters using a spear, or a quarterstaff, or a battle-axe.
For me, *That*'s worth the investment of a feat, and is stronger than many others already in the PHB.