I said all along, this thing will need to test for ages. While it seems to have been testing semi-frequently, very little of it has even had spinning cars.
And I also echo there's a ton of landscaping still to do, as well as finishing all the scream shields. We also can't hear the on board audio, so that will have to be tested and fine-tuned as well.
When most of those things are done, and we see frequent testing of spinning cars, then we may be getting closer. Until then, I know it's still going to be a while.