Ive been looking at his stuf also, Im going with the Iran x Og kush here (or the iranain Auto????).
First time grown his seeds. But if half the shit i read is true they shoud be incredible.
I heard They were all about the same potency and price.
But doc has no info on the new ones?
Heres what I figured...
The og yield less an tastes better.
The chem dog would be in the middle of the group (og came from chemdog)
And the g13 would have the most yield an less taste.
I thought i seen some test grows here ..........
http://michiganmedicalmarijuana.org/forum/84-dr-greenthumb-seeds-grow-journals-and-genetics/
Also "DrGruber" on RUI has grown alot of his strain, (cept the newest ones)