GREAT GUIDE! Thanks!
I had a laser targeted infrared thermometer for another project ($25 at local hardware store) and found the screen cover adhesive softened nicely at top and sides at 140-145F. I used a hairdryer on high setting.
I found with the top edge and both side edges lifted free of the adhesive in earlier stages, the bottom edge lifted easily at 100-105F. (I had package taped the screen as it had cracks, being sure the tape laid flat so sunction would form in the early steps.
NOTE THE MAXIMUM SPECiIFIED NONOPERATING TEMPERATURE IS LISTED BY APPLE AT 113F for the 2010 MBP 13”. Separating the bottom and top cases allows the keyboard and all the other goodies in the lower case to rest comfortably away from the heat.
One or two very thin flexible pry tools like iSesame (inexpensive online) worked well once the upper corner was lifted with a suction cup