So You Want to Write a Book--Rule 4

One of the big questions authors have is should I outline my book or not? 

My thought: Yes and No. That's pretty confusing. And yes, I'm confused. I never outlined my first three books (none of them released as yet--hopefully the first will be this fall). And maybe it shows. Or maybe not. 
I have outlined book 4. So far I feel more comfortable with how the book is developing. 

The value of outlining--I now think--is that it makes the writing process easier. But not as interesting! Since I already know the path I am taking. 

So what is Rule # 4? 

Rule 4 is to outline--but not too much. In my mind outlining in too much detail takes the mystery out of the mystery. 

I would love your thoughts on this crazy and bothersome topic. 

In the meantime, all the best as you write! 

Connie