One of the screws in my Mid 2012 MacBook Pro were stripped, and I used all of these techniques save for the super glue and rotary tool. I did however, use a drill which allowed me to get past the stripped screw. Using a drill is going to be dangerous however, because you could drill through the entire device, damaging it beyond repair. You have to be very careful, and only drill until the head of the screw comes off, then you have to use the pliers to finish removing the screw.