Correct. Each band has a maximum amount of tension, but the variables are many. For example, on speed squats we restrain the bands at the bottom with 4 db's. The height of the dumbbells, the height of the bar, the angle from the intersection of the db's and the bar, the height of the person, the height of the bar, the band postition on the bar, how far the person sits back, the angle at which the person ascends and descends, etc....will all play into the amount of tension in the band.