If you can find the strain...west coast Dog.
It's almost the same as OG Kush.
That would be a better male then Sour D.
I just learned of this strain.

I'm getting a strain called Dogbite(West Coast Dog x Lemon Thai Kush/the lemon thai kush might possibly be the San Fernando OG cut)
This would be a killer strain to croos with the OG.
BUT, It hermies under stress.
But only under stress.
Like the San Fernando OG cut does.
That why it is possible it's the same thing.

West Coast Dog would be perfect if you can find that....Or Chem/dawg.
Chem/dawg is in OG Kush and Sour Diesel.