I had to cut it off wit a dremel
I thought for exactly 1.25 seconds about using heat before remembering I was less than 2 feet from the fuel tank. I'm absolutely certain mine came free because I whined to the BB about it. That's just how the universe works. Your suggestion is noted though!For future reference, when those center nuts are stuck I put the impact on TIGHTEN for a few trigger pulls, and then hit it on LOOSEN. Always worked for me.