Spending a few hours with the new to me rear hydraulic blade helped a lot. I'm still figuring out draft control and not sure if it's working much, if at all. I'm still considering rear gauge wheels for next year to end up with a poor man's road grader. That said, I realize that it takes time to get this stuff figured out, and time to get good at grading. Many of us only spend a few hours a year doing this stuff so don't have the experience to know why it's going wrong or how to correct it.
What I'm learning is to allocate more time to the driveway, realize that it takes quite a lot of work, have a plan or an idea of what I'm going to do or want to achieve, think about what I need to do in order to get the results I want, and then stick with it. Because the lower driveway is used by my neighbor and their tenants (they have an easement), I feel some pressure to get it done quickly, but I'm learning that "quick" and "good" are often opposite sides of the same coin.