Here's a trick that might save you some hassle, especially for console players who don't have Addons to help them reallocate everything the way it used to be.
1. Spend only a single skill point on something you know you're going to get. (this could be optional, never tried a zero sum before)
2. Go to the Skill Reset Shrine and work on your build there.
3. Now you can place, modify, look at every morph choice, remove skill points, or reset the whole thing until you're satisfied.
4. Once you finalize all your options, you'll pay the cost of 1 skill point value for all your changes.