On the note of the ten inversion coasters (Colossus clones) the final inversion is because the long section of rolls can make some people disorientated and feel sickly afterwards, so they added in the final inversion in the opposite direction to reduce the amount of people being sick apparently.
And because the "Worlds First nine looping rollercoaster doesn't sound as good
) I actually like that inversion as quite a few are caught off guard.
If something is a Worlds first, it is usually the best part about the ride, if it is more of a record it starts to seem gimmicky (see the El Locos getting steeper by a couple of degrees, when technically every looping coaster hits a steeper angle, to me the steepest is 90 degrees, after that it starts to feel forceless, all the Eurofighters and el locos feel like nothing compared to Oblivion.