When/if I reach the point where my hair is longer than I care to maintain, I plan to cut back to waist with long layers. I have several reasons for this.
1) The grow-out from waist to tailbone was fast and I wouldn't mind going through all those stages again.
2) I got more curl at waist with long layers. It was very pretty to wear down, not so hard to detangle afterward.
3) Waist is long enough to do a variety of styles.
4) It has been nearly 4 years since I joined LHC. If I were to cut back to waist right now, most of my hair will have received special care the LHC way (multiplying the number of months since I joined by the average of 1/2 inch growth per month). By the time I reach/pass my goal of classic and cut back, all my hair down to waist will be post-LHC care and should be in excellent condition.