Nate Karstens, Abbey Donohoe, and Ian Sodawasser in Young FrankensteinOn at least three occasions during Thursday's preview performance, Quad City Music Guild's Young Frankenstein achieved a transcendent silliness - the kind you get with stunning regularity in Mel Brooks' film-spoof inspiration. If you include everything said and done by Nate Karstens' hunchback Igor, it was more like 203 occasions, but in the spirit of this tasty musical confection, let's save the sweetest for dessert.