DMM Revolution - Ice Screw
The DMM Revolution screws are the only screws in this test that don't have a winding handle, and this does set them at a disadvantage in that respect, however the smooth rounded heads do have a little 'bump' and the technique for winding these screws in is to place your palm against this bump and rotate your hand - it does actually work surprisingly well if you can get your hand straight against the screw, and made the screws as easy to place as some of the other screws on test with handles. If the screw/ice/hand is at a funny angle, then it isn't quite so easy to do this method.