(How are you tracking your EB-Proc? I am quite interested in this, too!)
I think that your trinket procs like DMC or Alchemist Stone or Light of Cosmos are much much much more important.
And of course, delaying your Ascendance if you don't need it for any special burn phase can also be significantly negative, if it means that you lose one full duration.
I really think that there is no point in going through the trouble to wait for the right EB-proc (though I had the same idea recently ^^).
Edit: I totally agree with Undefetter here :P