I have a Simplicity Broadmoor with a 38” deck with the mulching kit on it. I’m having difficulty finding/figuring out what replacement blades to use on it. Should it use just a high lift blade or a mulching blade. I have found high lift blades that fit the deck on line but no mulching so far. If anyone knows where I can get the correct blades I’d appreciate it. I tried regular blades but they leave a line of clippings about 2-3” wide where I’ve cut.