Let's put some facts in a row:
1-On Tokyo Warhearts and Seoul gig he had his Jacksons with him
2-His Jackson guitars are anymore with him
3-His tone on the AYDY tour and album was nothing to be proud of at least IMO
4-Although a bit muddy, the ESP Alexi+Marshall JCM sounds way better (ask Mitch about the London gig or sleeper666 about the Spinefeast gig, or check some Gigantour vids)
So with all this things together, I wouldn't bitch about the KK head.
EDIT: And as Inhe's post below shows, Namm's tone (ESP Pink Sawtooth and KK head) is fucking win.