I too work most of the blade, whatever is best, but because of the goatee, long side burns and clean bottom lip/upper chin I end up using that front part of the blade the most, only way to get into some of those spots without hurting myself or taking off hair I still want. I use the full blade for my cheeks and neck and probably the last half most when doing the up strokes at the bottom of my neck. definitely the toe gets the most time off though.

Red