Drubin,
I cannot be entirely helpful here because I've never heard the De Capo i. Mine came as the De Capo i/A with the white, "acoustic lens" rather than the older, fat phase plug at the center of the main driver. I then upgraded to the BE tweeter when it became available. Plus, even before the i/A, the "i" itself had gone through some changes, I think.
What I can tell you is that my De Capo's have never sounded overly or obnoxiously bright to me. They DO require a good deal of break in time to really show what they can do. The drivers apparently have to loosen up and that big capacitor has to break in and "form."
Art Dudley, who reviewed the De Capo i for Stereophile back in 2003 (and found them "unforgettable") said he heard a "hooty coloration" with some recordings. I think I may know what he was referring to but any trace of that has vanished with playing time. John Atkinson really didn't like how they measured, but I wonder whether the newer iteration would please him more.