I apologize because I am out of extra time to read the whole thing but let me just say this. No one, I repeat, no one on this planet hates roller coasters more then I. Especially one's that invert, but, my grandson wanted to ride so I went. First of all, the ride is less then two minutes long to begin with. The inversions happen so fast and in the dark that you don't see them coming and by the time you realize they were there, you are getting off the ride. I wouldn't let it worry you, it is a fast ride, I find myself hanging on pretty tightly, but, like I said, by the time you figure out what is going on... it's over.
P.S. I have ridden it several times since then and find it to be fun. And I'm almost 67 years old.