I just ran into an interesting post on the Hunter Allen website. I hope we can agree that he's not a fool
https://shoppeaks.com/tractor-pulls/
He makes a very good argument for low cadence training, but with a twist. To his article, I would add that these "tractor pulls" will be more effective if one has done a lot of low cadence training so that one's muscles fire appropriately, keeping the pedal force tangent to the pedal circle all the way around. Many of us have probably seen "Stomps" suggested, which is much the same thing except for the added focus on directed effort, the 30" possible duration of these tractor pulls, and the suggested 20 intervals in a row. There's an obvious correlation with gym work, where again the objective is exhaustion of the affected muscle group in order to attain greater fiber recruitment.