When my MMR arrived I moved it around like normal and was caught off guard with the latch dragging along the ground.
Quoted from Pinballpal:This same thing happened on my Star Trek LE on the drop down target in front of the ship. I fixed the promblem by making the spring more powerful / tighter by moving the spring down about six loops. This fixed the viagra drop target for me. Or you can install a stronger spring on the drop target that could work too. Maybe stern did not install a spring with enough power.
I've found on my nib games with drop targets, they take time to work in. on ac/dc the cannon ball often rebounded off the drops at first, but now I can't remember the last time that happened.