^ I never really thought a launched, complete circuit roller coaster with a single loop is a shuttle loop. But I guess it is a shuttle loop, just with more BBQ sauce, or what ever the phrase was.
Arrow shuttle loops have a similar concept as the Shwarzkopf, just a bit crappier. Its like a Vekoma SLC and a B&M B:TR. Different specs, different layouts(sort of), similar concept.
I completely forgot about Premier rides. Not that many people would think Premier made shuttle loops because there isn't a lot of them. Come to think about it, theres only one.