I agree. I always wondered ever since I found out that Neville was using his father's wand if that had anything to do with his ineptness up to this point, because to each wizard his own wand, or, really, to each wand its own wizard/witch. I keep remembering hearing Ollivander saying "You'll never get as good of results with another wizard's wand." But, on the other hand, have we really seen much improvement from Ron with is own wand?

Todd