A healthy debate has raged concerning fabricated versus stamped decks. My view is that either design is capable of being made with quality ranging from poor to superb. The thickness of the deck is obviously a major factor, but not the only factor. Steel quality can vary a great deal, with some steels being more fatigue resistant and others less so. We consumers simply don't know much about the differences in steels used in our machines. Sometimes quite small differences in alloying creates major differences is steel strength and corrosion resistance. I am speaking here of the commercially available steels, not the exotic grades found in aircraft and other very demanding machinery. Both deck designs normally feature added reinforcement at key locations. The maker has great latitude on where and how much to reinforce. The choice made surely has an effect on durability and strength. From an air flow view, I see no reason to think that a fabricated deck would enjoy any shape-related superiority. After all, the deck shape is a function of manufacturing considerations, not aerodynamics. Neither is it clear to me that stamped decks have an optimum shape. There, too, the stamping shape must conform to the range of shapes into which steel can be drawn. I have two stamped decks. The oldest is 35 years old. It has performed well, but has required welding on two occasions. It was quite thin when new, and is thinner now due to corrosion. It came with our ancient Gilson S-14 garden tractor that has been in the family since new. Considering its rugged use and extensive neglect prior to my acquiring it, I am more than satisfied with its longevity. The other stamped deck came with our first-series Kubota ZD-21. It has performed very well since purchase. The cutting performance is acceptable, but not as good as the old Gilson. Kubota has since changed to a fabricated deck whose cut some like and some do not. It is difficult to prove that either deck construction is inherently superior. Blade designs vary, blade speed varies, deck suspension designs vary, and so on. In addition, the designer of any deck has many choices as to shape, depth, thickness, baffling, spindle housing shape, etc. With all these variables, who can sort out the effect that only the deck construction--fabricated or stamped--has? I've always wondered how much of an affect differences in spindle setback has. I refer to the distance that the two outer spindles are to the rear of the deck compared to the middle, forward, spindle. The entire realm of mowing deck design is ripe for intensive engineering analysis by university engineering research departments. I have yet to read a scholarly examination of all the variables that make decks perform well, or not. If any contributor knows of academic papers or dissertations on deck design, I would like to know the reference to improve my knowledge. For the record, my ideal deck design would be machined out of titanium, by a major aeronautical company with absolutely no concern for cost. The overlapping blades would be timing belt, chain, or gear driven and in a straight line. Thus, no more uncut areas during turns. Such designs may be impractical, but we can all hope for further improvements in commercial decks.