Before Al posted his "question mark" reply above, I was going to post something. I think I know exactly what he means. Which I think goes along with his question mark. The difficulty comes with creating an apex not in the work itself. It is time that creates the apex. In actuallity, once one knows how to build a well structured apex, you will see how smoothly things flow.
The technique sawgrass is using is similar to apex creation in certain circumstances. However, these situations are when one wants to create a fast apex. In my opinion and from my experience, this creates an apex on borrowed time. I have seen similar techniques in apex creation such as looping a branch to the right, then sharply to the left or vise versa. In time, you might have to prune more in some areas to keep the apex shape. However, with junipers and other trees you can't due to health reasons. So instead of nice and even all around pruning, you might have to prune hard in certain areas of the apex. This can result in part of it dying. In the end, you have to go back to square one and start over again. If it's one thing I have learned, using whatever works at the time, may not work in the long run.
A good apex is usually structured from one branch. Pick a branch with some secondary branches. Then wire that branch up and a little bit towards the viewer. If sub branches are old enough, wire them. If not, let them grow, then wire. Creating an apex in this manner will save you a lot of trouble. Do it right the first time. Let time create it. You are only going to have to redo it down the road. It might be 3-4 years or more down the road. However, after training a tree for years, I would not want to go back and start from scratch to create a new apex. It's happened and I learned a good lesson from it.
Rob