We know there's only one Sour Diesel cut but many people seems to use the DHK, AJ's or Chaco names to let people know about the initial source who shared the clone that ended reaching their hands.
DHK stands for Devil's Harvest Krew (https://www.icmag.com/ic/showthread.php?t=199198). I think I've read that even Chaco sourced his ECSD cut from them, although I can't remember now where the info is.
Chaco's cut of ECSD came from a crew of lesbian bikers. You didn't know that? By now this is old news.
Don't know what you have read but I can say what you recall is incorrect. It didn't come from DHK, at least not directly to him. It came from a local. Prior to that I think Verm was the one that sourced it after whoring out Golden Goat, and he kicked it to a couple of guys in the MA/RI/Conn crew. It spread from there.
Since someone mentioned it, 77 days to flower. No need to go past 80 IMO, unless you want just diesel flavor or a one dimensional stony buzz. It's night and day between 11 week ECSD and anything past 80 days. I've tried all different times, and the best flavor and high for me is found between 75-80 days.