With my spreadsheet corrected, it is fairly easy to drop in the data and look at each election.
The results going back in time over 50 years is the same results but closer races. Until I reached 1960.
If those same unpledged electors still voted for Harry Byrd as they did, Nixon wins and Kennedy would lose.
But they might not have made their symbolic votes.
I think it would spread out more campaigning efforts without the winner take all schemes. But I have no illusions it would ever happen.
‘But they might not have made their symbolic votes.’
There was nothing symbolic about the 1960 Byrd voters. They were deliberately trying to throw the election to the House, and planning to elect Nixon or Kennedy, whoever would put more restrictions on Civil Rights laws.