There's also no evidence of Tri-Track. While Intamin COULD use bi-track, I just don't think it fits. See, the coaster is not going to be as fast as a Mega-Lite.
Okay, so the immediate counter argument there is "well, in that case they can use bi-track". Only it then makes the coaster nothing like a mega-lite. As UC says, they're airtime machines, and this is a much simpler beast.
Look at the Backlot Stung Coaster POV
http://www.youtube.com/watch?v=nN9-l8uEcgA
Imagine the launch is SW6, only SW6 goes backwards rather than forwards. The way the track curves, the actual track design AND the footers/supports all match the SW6 plans almost 100%.
The "wiggly" bit too, matches the section on SW6 through the woods.
However, Premier don't quite fit 100%. They produce mostly LIM coasters now. The Mummy coasters are a very different design. They don't tend to do rides with quite the extended layout Alton have here. However, they're much easier to overcome "issues" than the Intamin ones.
When you look at these things, you look at likelihoods and probabilities. You look at the obstacles a "theory" has to overcome to become truth. The harder you have to look at ways around an obstacle, the less likely it is to be that.
This is why Mack and Premier tend to be my top two choices. They both have very little "logically" to overcome to be the people involved.
Gerstlauer and MS have a few more issues to overcome. Intamin a bit more, Vekoma a massive amount and B&M so much against them it's more likely to be constructed out of reconstituted worm food!