Well, i believe the way that the dragon claw spec works is that in a four hit spec, the last three hits are entirely dependent on what the first hit was. So it is still really only dependent on landing 2 hits (same as ags).The claws had a couple of tweaks since being released, and in its current state, from my pking experience they are perfectly fine, changing them again could make them too op, so my honest opinion is to not change them whatsoever.
I will always pref the Ags over dragon claws, its more accurate ( requires a higher attack level so it makes sense), you only need to land 2 hits instead of 8.
Oh, and support.