replacing tweeter help


I'm thinking about replacing a metal dome tweeter in a Monitor Audio 5i speaker to soft dome tweeter. What are the pros and cons of doing this? Thanks to those who reply.
trip
I am not an expert,but I would think that the down side would not knowing which tweeter to put in,possibly making matters worse. Try to find someone who has done exactly the same upgrade or do you homework big time.
Pros: You'll eliminate any high-frequency break-ups that cause audible in-band IM distortion.

Cons: If the tweeter is not otherwise identical you should redo the cross-over. Good luck.
maybe i can put some felt around the tweeter to calm it down. I don't know where or who to order it from. Any suggestions would be helpful.