Why would you ever delay Flourish as much as you have? And why start with a Fountain > Cascade combo when you should immediately be setting up Technical Step. Your second opener has the very likelihood of your Flourished procs falling out of your Technical Finish buff window, which is a huge no-no as it’s a major personal DPS loss. Flourish and Technical Finish compliment one another (TF’s buff is 20 seconds and all Flourished procs are 20 seconds), and should never be arbitrarily delayed for the weaker Fountain > Cascade combo (and subsequent, unaccounted for procs).

I’ll stick with the already established DNC opener, and I highly recommend all prospective DNCs and DNCs interested in optimizing do the same.