It was a struggle for me when I was trying to get APL because I was too scissor happy. I wanted perfect ends at all times. I think if someone has never been APL before, it will be the toughest to reach out of sheer distance. Ear to chin, chin to NL, NL to SL- don't tend to have an many inches between them as SL to APL.
After that BSB is pretty close by, but MBL will last probably the longest of them all, depending on proportions.