I've been out of action for about two weeks after having an operation and will only have fully recovered by the upcoming saturday which happens to be a medal. I want to do well in this and stun my friends by playing better than them despite not having played in a while. I've not really been able to practice full swings only a few simple drills and movements, but have however been working hard on developing something which I've never had before, a pre shot routine, I have also worked intensively on my putting and chipping. Is this a good thing to do and will it make considerable difference?