An Italian loop, as it is referred to by the Parksmania people, is the slanted immelman-ish element before the berrelroll...
Hmmm, thinking about the forces, I still think it will be pretty strong, I mean, it wouldn't make sense to put the spikes on the official site... They're probably quite sustained... I'm quite sure for the turn, the airhill and the climb and the drop from the tophat...
If the forces varyed by a lot, the track would have to have non-constant radii, no?
Oh, and I'd love to hear more about Loefet's Gforce meter thingy!