You can use the 2-prong remover as well. It has deeper fingers to grip the freewheel-body lower down past the rounded-off corners.

To use the QR to hold the tool in place, I insert the skewer with lever on opposite (left) side. Then screw in the skewer nut all the way hand-tight. This gives zero wiggle room for the tool to slip. It will only unscrew about 10-20 degrees before binding-up against the skewer. Then I just remove the skewer and the freewheel's already broken free from the threads and can be removed with just the tool alone.