we did rotate them to compensate for the drop
This is new to me. What is there to compensate and how much?
when you lower the car your trailing arm angles slightly off its usual axis. in order to compensate with the bushing you rotate the bushing slightly so when you are at ride height the bushing is not under torque.
could someone explain to me how they do this?
Look one post above yours. This is only needed though on OEM and Mugen bushings since the center pin isn’t able to pivot.
oh ok cool… thanks for your answer… thinking about getting ES, i’ve heard good things.