The problem isn't so much short-drawing the bow, which some people do on purpose on close shots, but short-drawing the bow when you don't intend to, which can lead to target panic. If what you're doing is leading to target panic, then you will find it increasingly difficult to come to full draw, and eventually won't be able to come to full draw at any distance.
If you think this could be a problem for you, then I recommend you review Joel Turner's target panic thread in this forum, and buy his DVD, because it's something you want to nip in the bud if you can. Joel has also been very generous with his time talking with people on the phone, and has helped me out in the past.