I have called a couple Exmark dealers, including the place I bought my Lazer. None of them stock the Excalibur blades and they seem to want to push Rotary aftermarkets stuff or Silver Streaks for near $15 a blade. I was under the impression that Exmark OEM Excaliburs were less than that...by quite a bit. One of these dealers insisted that Excaliburs were the same as Gator Blades and thats what I needed. Can you give me the specific part numbers for the notched and solid air foil Excalibur blades for my 60" Lazer and an MSRP for them so I know what to look for?