Couple of ideas for you, John. My drivers are usually still stuck, even after I remove the screws. My way to get them to pop loose is this. I turn an oversized screw, like a sheet metal screw, into one of the holes. Then, with a thick, folded towel, under it, I use a claw hammer to pop the speaker loose so I can get a finger under it. Sounds radical, but it works. Also you need to make sure your new drivers are air-tight, either with a gasket or some sort of sealant. Don't cross the wires, but I'm sure you know that. By the way, do you hear or feel anything when you push the cone in slightly with your fingers?
