Yeah it's really interesting to think of how the unusual g-forces play out on such a train design. I believe your statement, and I trust that the back-left is slightly better. There are some spots that the back-right looks awesome for, too.
Slightly unrelated, but I'm still disappointed and frankly surprised that B&M didn't incorporate an inline twist after the helix. They could use a second helix to get around to the brake run. It seems like such a unique opportunity for them to use such an element (on wingriders) and, though the ride is long and particularly slow near the end, I think they could have done it. Thoughts?