OG Kush is indeed clone only and anyone selling what they claim to be 'the' OGK in seed form is selling either a backcross or a feminized/selfed version. There are 3 lines that have drifted over the past 20 years, but they all sprung from the same seed back in da day.
Those plants are truly stunning.
Raskal, which cut of the OG is that? I run 'Abusive' and still have yet to see someone else on canncom showing off that version.