Why did my Total Force go down when I switched to a heavier band for an exercise?Updated a month ago

The Total Force number is a calculation that takes into account your rep cadence, rep count, total time under tension, and the forces you're experiencing during the workout.

The point is to encourage users to perform the best possible workout, which will ultimately yield the greatest results.

You shouldn't necessarily expect your score to increase just because you moved to a heavier band. Both your rep count and your time under tension are halved when you move up to the heavier band. So even though you were achieving a greater maximum force, you were experiencing less time under tension.