It is my premise (true or not, it's mine) that despite what WinIsd might say a high Qts driver is providing the impression of extended base response by flapping in the breeze. It is not providing an accurate representation of the input signal.

As I noted in my original post (assuming that sound quality was important) if you want to go the OB route you have to be prepared to EQ and it's almost mandatory to bi-amp to get the needed degree of driver control.

OTOH, if your primary concerns are (personally) satisfying reproduction at minumum investment and not fidelity (which is a matter of personal preference) then I would agree that a high Qts driver is the way to go. But I would also contend that concerns as to how Driver A compares with prized classic Driver B should not be among your criteria for driver selection.