I don't divide subtypes so sharply or completely to be able to say that one is more prone to anything than another for the most part. It's like something that goes backwards, but can't go forwards. So an SLE obsessed with law, you could say "that's because you're the Ti subtype" (when it's one thing among many that points to "Ti subtype"). But if you try to go the other way and say "is law obsession a Ti subtype thing" I don't think it works very well.