Full draw really doesn't have anything to do with where you anchor. Full draw is when you have achieved the alignment shown in Terry's form clock, i.e. when your forearm is in alignment with the arrow, viewed from above. You may already be coming to full draw, or not; it's impossible to tell without looking at your alignment. Even if you're coming to full draw, there are things you might be doing that would shorten your draw by an inch, such as bending your left elbow or opening the alignment of your shoulders. Some people who come to full draw shoot better with their shoulders slightly open to the target and/or bending their bow arm slightly, which might cause them to draw shorter than their maximum potential draw length, so long as they do these things consistently.
Fred Asbell feels that shortening your draw length by adopting the form he advocates can increase your accuracy when shooting instinctively at typical hunting distances. Most other archery "guru's" would probably disagree, and would favor an upright stance, shoulders perpendicular to the target, and little or no bend in the bow arm, which would cause you to come closer to your maximum potential draw length. Both camps would agree that you should come to full draw.