The idea that Morganti weapons have various strengths can lead to some odd (and IMHO wrong) conclusions. In use, a Morganti weapon (which I'm not confusing with a Great Weapon) has one and only one effect -- it destroys the soul of the person cut by it. They come in various strengths, but the strength seems to be irrelevant to the effect. Vlad describes some Morganti weapons as practically screaming 'use me! use me!' I believe this is the strength referred to. Take one in hand, and you've got the urge to use it. I like the theory that Morganti-taken souls go Someplace Else; it jibes better with my own personal interpretation of 'soul.' As for Pathfinder being successfully disguised by embedding it inside a large, ordinary broadsword -- that's certianly consistant with the other things we've seen about Morganti weapons. Putting them in a sheath seems to make their special characteristics almost undetectable. Loraans experience is most easily explained by Morrolan having instructed Blackwand not to take his soul. Vampires, at least Dragaeran ones, have their original souls. -- 'Never attribute to malice what can be adequately explained by stupidity.' -- credited to various people, I heard it from Robert A Heinlein.