Replying to Dalbello Il Moro's tongue (and FT's?)

Yes, bootfitter I know.
Already been there and the Il Moro's are frigging awesome for my foot. The only thing I don't like too much is how soft the tongue is.
I currently have a 100mm last boot and I still find it could be a little bit more snug actually, so that's why I tried getting a 98mm last and it's super nice.

Pretty much 2 questions in this thread:
- Can Il Moro tongues be swapped?
- How does the Il Moro shell compare to the 98mm FT shell (all 98mm FT's are the same right? Except for tongue flex/graphics). Aren't they based on the exact same model?