yes completely agree. Can't really make a perfect comparison as you say, but I am almost sure that in the F scale era we would have probably had 5 or 6 F4s given the number of slabs from various different states. Exceptional outbreak really.I really think, as you posited, those Tennessee/Arkansas border storms were likely very intense, but managed to stay rural, which is a good thing.
And I’m not trying to get an EF scale thread debate going, but I would love to know how a lot of these tornados from this event would have been rated in the 60s/70s. A lot of times I make mistakes and think, wow those outbreaks back then were loaded with top end tornados, but the scale was a lot different and it’s 100% not an apples to apples comparison.