I'm not sure when Lloyd Pans (the parent of PizzaTools) introduced the Detroit-style pans with the PSTK finish, but they are Lloyd's effort to offer a competitive product to the classic blue steel pans used by most of the pizza operators who specialize in the Detroit-style pizza. Whether they are worth the premium price (multiples of the blue steel pans of the same sizes) remains to be seen. However, they are not to be underestimated. PizzaTools/Lloyd Pans is a quality outfit and they have managed on many occasions to convince pizza operators to switch to their products, a good example of which is the switch from screens to disks by pizza operators with conveyor ovens. BTW, Jet's uses conveyor ovens to make their Detroit style pizzas. Unlike Buddy's and its ilk, Jet's never used deck ovens as best I can tell from my research. I believe that Jet's was the first pizza operator to use conveyor ovens for the Detroit style pizza. Of course, there will be some who do not consider Jet's style pizza to be a good or legitimate manifestation of the Detroit style pizza. That may well be true, although Jet's has been running circles around the classic Detroit style pizza operators from an expansion and growth standpoint.