Dan, congratulations on the purchase. Swapping out speakers has always brought me the most enjoyment.
But "if it ain't broke, don't fix it"? Since when have any of us followed that advice!
And you have 3 systems I believe. Seems you are always out looking for something to be "broke" (and I am not referring to just your bank account).
I don't know how long from now it will be, but I look forward to your writing about your next quest to fix something that "ain't broke"!