I have a theory about why Tieton seems so difficult for new leaders. In most other climbing areas of similar rating there are lots and lots of faceholds one can use, even though you are protecting in a crack. Because of this, you are not forced to jam. Now at Tieton there are far fewer face holds and you have no choice but to jam. If you are familiar with jamming, you will be very comfortable leading because you can rest on a jam. If you can't jam, you will find even easy routes very difficult.