At worlds I didn't get the sense she was fighting tooth-and-nail to get a medal. She was very controlled but also very cautious which makes me think her goal was to place well enough to get those 3 spots back, which she did. Having 3 spots for Sochi gives her a cushion at nationals next year as well.
I think Ashley needs to commit to the 3-3 from the beginning of the season and stick with it...not just see how it goes at the time of competition. She needs to be comfortable with it. I really think a 3F-3T is a good one for her simply b/c her 3F is one of her best jumps: lots of power, height and coverage. If she trains tacking that 3T to the end, she should be able to get it consistent enough to be reliable.