I have had very few FAs over 7 months of my LD practicing (5? 6? Out of many many hundreds of non-lucid dreams). However, in my last LD streak I did have a significantly elevated occurence of lucida and a few non-lucids fading into FAs, so I'm hoping that I will continue to have more of them and catch them. 3b looks like an interesting way to do that. Practicing becoming lucid, and "waking up" and realizing you're lucid seem like good exercises.