Side view diagram of DS2??

As I said in an earlier post, my new mod for raising and lowering the centerboard works great. One advantage that was gratis is that I know at all times if my CB is up or down, and points in between. I have noticed that when I push the CB down all the way (until I hear the clunk) she wants not to stay down, but to rise slightly. That seems to be her default position. I will add a bungee to hold her all the way down, but wonder if it is necessary. I suspect that when the CB is fully pivoted down, it may be slightly forward from perpindicular, and therefore a more balanced position for the CB may be to come back slightly. Is that correct, and is that the best position, or should I bungee her down? A side view diagram, and any other input would be helpful. Thanks again. By the way, we sailed today in 15 knots, with a healthy chop. There was no water in the bilge.