Called Hustler direct today and no luck getting one covered under warranty. They acknowledged the problem but said it was sold as an accessory and not a warranty item. I passed on purchasing one, citing that I believe it should be standard equipment. The tech I spoke with agreed but said his hands were tied.
So for kicks I called my dealer. Spoke to the tech there who said he never heard of one burning grass before. I had to give him the part number to get him to realize there was even one available. He looked it up, and saw the kit but said there was no record of one being sold at that store or the two nearby dealers in neighboring cities. The parts guy is out for the week and he said to call back and talk to him before I paid for one.
It's a minor issue sure, but Hustler should step up here and make it right. One of my burn spots is where I paused to wipe off my sunglasses, maybe 5-10 seconds tops.
I suspect most if not every Raptor owner is experiencing this, but not realizing the true cause of the spotting.