They are not perfect but I don't see any real dangers. I'd have to see the limbs up close to see where possible stiff areas would be and figure that into the tiller picture.
To answer your question, yes, it is a good plan. And not to confuse the issue but, personally, I don't use my tree to full draw extent. I use the tiller stick up to 16" of draw then I go to the tree for 20+ inches then I pull in front of a mirror beyond that. Thats just me and there are other ways to do it. You can and will get different tiller pictures if you pull the string from where the arrow will be.
So if I were you I would take the bow down and pull it in front of a mirror and compare that to the tiller tree picture. If they are very similar then, by all means, stick with the tree to full draw. Otherwise, you might want to tweak tiller via the mirror.