"It Depends" ...on what?

We often hear hoof care professionals answer our questions with, "It depends." What exactly does that mean to you? What are some of the factors that the following questions would "depend" on? Submit your answers in the comments below.

• How short should the heels be trimmed?
• How much wall should be left above the sole?
• How short should the toes be?
  
• How much "roll" should be put on a bare hoof?
• What angles should a horse's feet follow?
• Where should the widest part of the sole be?