No one said her backhand is now, her best weapon !
We were just saying that her backhand is not a real weak point!
First you're talking about Venus : Venus is one of the most powerful player in the world: for sure, she can really attack Justine's backhand (but it's not only Justine's case)
And as I've said it in another thread, I think it's no more the case now : Justine's not afraid of power as before: she used to really slow the ball when one was attacking her! Now, it's less the case.
(anyway, i'm not saying, Venus won't be able to attack her backhand)