1 more thing - strangely obVS, even more strAng that no one’s noticed.. Igf you look at a 50 amp 3 prong cable, you’ll notice that it’s but backwards reversed from standard 120v(15-20 volt type) 3 prong plug. if you flop an ohms buzzer tester on an adaptor for this 50 amp to 20amp, you’ll notice some if not all adaptors link fat plug to thin, & vic versa.. but I said SUPER strange & meant it, because, geTng down to the pre-Ty grader level now, you’ll also notice all type plugs everywhere are literally reversed w/the fat - small - right - left placemant, almost as if, to switch from 20amp to 50(IdOnO about 30 status), one has to reverse polarize or watever👋😒