I love NWN,
if you want to use a vow you need the following feats:
Weapon Focus
Improved Critical
Rapid Shot
Called Shot ( if you want to waste another aditional feat, I don't use this feat because I needed the feat somehwere else.)
Point Blank Shot
and if you have HoU and reach Epic Classes then pick one level to fighter so weapon specialazation and epic weapon specialazation gets available.
