The strength curve and resistance curve are inversely proportionate. When resistance is low, strength is higher. When resistance is high, strength is lower.
But the highest point of resistance/tension isn't uniform across all exercises. Tension increases and decreases at certain points during a movement. Knowing this will help you manipulate the resistance curve to create more continuous tension, and thus, more gains.
As a bonus, in the banded curl, the chest pad works as your built-in counterbalance against gravity, so you're forced to stay strict.
Most lifters try to progress in strength, hypertrophy, stretching, and conditioning at the same time. Huge mistake! Here's a better way to, well, get better.
The Canadian Vin Diesel shows you which type of contraction (constant tension, stretch reflex, etc.) to use with different movements, along with explaining why you should absolutely keep your training sessions under 60 minutes.