Ok, Dave, this is for you!
I started to disassemble one speaker to prepare for the upgrade. I pulled the batting out and was going to take the crossover out with my stubby Phillips head screwdriver. Wouldn't you know it; there's Allen head screws holding it down. Since I now have to purchase one of those can you tell me what size I will need, and if it's SAE or Metric?
Also, I managed to unscrew one lead from one binding post. There is no lockwasher as it had glue holding it tight. Is it ok to screw it back on without a washer after the upgraded board is in place?