Someone from another forum made a comment that DT's sound has changed with changing keyboardists more than it did when Portnoy left.
I tend to agree. Apparently KM has made the most contributions out of the other keyboardists as a major lyricist and music writer of the band so his departure made a major impact. DS's work on FII definitely has it's own unique sound and now even MP admits that JR is an integral part the music writing.
And now that we have ADTOE, we do see some of MP's preferred heavy elements missing but, imo, the change is not as big as the change made by changing keyboardists.
What do you all think?