A reputable member from another forum I frequent grew out several of that guys cuts including the crippy, TK, and gainsville green and said all were fakes except his animal cookies.
Honestly, anyone pushing the idea that OG kush was around in the early 80's raises a bunch of red flags.
A clone vendor in my state was selling the “real deal” sunshine tk. Having grown the original, the sunshine is fake. Never even flowered it as it was obviouslly not Tk in veg by habit alone