Ted,
As usual, really great question.
It depends on the strength session. Crossfit is going to be something like 70/30 and a “classic” functional strength session will be closer to 75/25.
In a classic functional strength session, you’ll do something like 3 sets of 20 reps on 60 seconds rest. The “hard” takes 20 seconds and the easy is 60 seconds, which is where you get that 75/25 ratio. That’s close enough to 80/20 that you can just add it to the regimen without messing with the ratios. Our 80/20 free and premium plans all assume this ratio.
David