New Tweeters for Mirage M7si

I'm contemplating swapping out the original titanium dome tweeters to a SEAS textile dome model H1189 from MADISOUND. The SEAS tweeter appears to be a good fit dimensionally, ohms, sensitivity, and frequency range. Can someone offer an opinion if this will work, sound good, not require messing with the xover? I'm thinking the SEAS tweeter is more refined versus the original tweeter. Any comments, suggestions is appreciated.
Mirage designed their entire si line around that tweeter (I had the 3si). It seems unlikely that any substitution would be an improvement. However, if you want to play and see it as a learning experience, I do not see how you can hurt anything by the substitution.