It's kind of a weird situation, I sold my Buell, when I went through 4 hip surgeries. The last 2 being full replacements.
While my bike was owned by a different person, he converted the rear to a Lightning setup and installed these tires. I actually thought I was done riding, but turns out, I was able to get back in the saddle and luckily enough, I was able to buy back my original Buell. I love the lightning rear as I had a CityX before the Firebolt. So I inherited these tires and since they had plenty of tread on them, I was trying to adjust, but they just don't inspire confidence in me, and that is not a good thing on 2 wheels especially, as you said, it's at most $300 to buy and mount great tires.