I have been very happy with the notched air foil Excaliburs used on my 60" Lazer. I recently had a dealer order 7 more for me, two complete sets and one to replace a damaged one on a previous set. Last week I replaced the one and didn't even bother to look at the other two complete sets. Today I unwrapped the other two sets and 2 of the 6 look defective. If you look across the cutting edges, both flare down near to ends. The others seem fine. It also appears the tops of these blades have a considerable amount of rust under the paint compared to the other 5 I purchased. Is it normal to have defects like that roll right through? Put on the mower, you probably would not even notice the difference in cut, but the fact is, those two would have to cut lower because of the flare. Another problem is, the dealers do not want to handle them and are often reluctant to order them. They would much prefer to sell and aftermarket blade and make more money on them. I have a feeling if I make a big stink about this they may not want to order any more of them for me.