I don't mean to say that adding to your melee defense is weak, but that a talent that replaces any Defensive quality on your weapon is kind of weak, especially given that we have both the Curved Hilt and Loridan Crystal, which would be fairly popular for certain types of characters, but totally unattractive if you've picked up ranks in Defensive Training. In the reverse, if you have ranks in DT and later acquire one or the other (or both) of the lightsaber parts, you've now wasted a bunch of XP potentially.
Thoughts?