Oh. You meant spudgers.
I never use them on this. On top, a tiny bit of heat loosens the old LCD so that it comes right out. It SHOULD come right out, if it is stuck with glue trying to remove it will just bend the frame. Don't use heat anywhere near the webcam. A surface mount rework station is great for this since it doesn't blow the hot air everywhere.
On the bottom, you can be ruthless. The idea is to rip it out away from the machine so that the bottom piece that says "Macbook Pro" is bending in the direction behind the computer, so that when you insert the new LCD this piece is leaning into the bottom frame of the new LCD. Prying it towards the keyboard in the opposite direction will just result in that piece not being flush with the new LCD, allowing it to appear as if it were worked on. The idea, is to make it look like we were never there.
When you insert the new LCD, if that bottom piece that says Macbook Pro is slightly bent in the direction away from the keyboard, you will be pushing it towards the keyboard as you insert the new LCD, and it will be totally flush with the metal frame surrounding your new LCD.
Also, don't remove the bottom screws in the display assembly. Only the four black screws on the left and on the right need to be removed. The four on the bottom screw into the part that says Macbook Pro and keep that stable as you rip the LCD out.
Have fun! 🙂