FWIW I thought I had rod knock for a while, even had a 5/8" rubber hose pointed at the block into the cabin to hear it. In the grand scheme of things, it is overall intermittent as it went away-- I haven't done anything to the short block and have done almost 5 track days since I first took notice to it.Well, my motor is having issues, and I don't think it'll be wise to drive it on the track either way.
I'm giving up my spot in group C if anyone wants it.
Get at me!