Question regarding hamstring leg curl in rings

Hi, just had a quick question about performing hamstring leg curls on gymnastic rings. Will raising the height of the gymnastic rings, let’s say hip or even waist height, make hamstring leg curls harder or easier to preform? To clarify, I’m referring to the variation with your feet on the rings. I’ve been performing the exercise for high reps for some time now and wasn’t sure if I should raise the rings or lower them to make the excercise harder.