Ah yes... "a true junkie"... who either is incapable of reading, or understanding what he reads (no doubt one of our 70% poorly educated graduates of our failing education systems). Read my comments again, more closely, perhaps you'll "get it" this time.
I said nothing about the O2's sounding poor with the BHSE or WES, quite the contrary. As for the KGSS, read the link I provided - perhaps then you'll "get it."
And... even if you disagree with the posts that report the O2 does not perform it's best (or even competitive with great dynamic setups) with the KGSS, or 717, or 727 - I've seen nothing credible to refute the posters comment about the KGSS with the O2's. Moreover, an uninformed person should by no means rush out and buy any O2, thinking that he'll "luck onto" a 717, or that he'll modify a 727 (if he can find one at a good price), or achieve their optimum sound with anything less than a BHSE, or perhaps the WES, only to find they must invest a lot more of their hard-earned money to do so.
The point "my dear friend" is the ridiculous cost of the O2 set up in order to achieve the optimum sound of the O2's... compared to the great sound (perhaps better) you can achieve with dynamic set ups, and others, with much, much smaller investments.
Read, understand, and then respond rationally, not emotionally - you'll be taken far more seriously, if you do.