Morel MDT-33 soft dome tweeter

Thanks, everyone for the info and suggestions.

Performing surgery scares me a bit as I tried once before on a different tweeter and screwed things pretty royally.

I saw today they sell replacement domes (Morel R-33) at Parts Express.  Is a dome replacement fairly straight forward and easy or does one need to be a speaker building expert to swap out the domes?

Thanks again.

Mamoru

It's super easy. 

Just keep in mind the magnet is super strong, so you want to keep good control of your screw driver, and when you pull screws off, keep them far away so they don't jump and break the diaphragm. 
Since you are already thinking of replacing the diaphragm, you shouldn't be too scared to try and repair them. :)

Cool.

Thanks.

I will give this a go.