This is the description for Lowryder:
[FONT=Arial, Helvetica, sans-serif]Genetics: William’s Wonder / Northern Lights No. 2 / Mexican Ruderalis
Type: Stabilized hybrid, True-Breeding[/FONT]
"Lowryder is 100% stable and reliable in its properties, a product of nine generations of selective breeding, and is non-deviant and hermaphrodite-free."
Lowryder #2:
[FONT=Arial, Helvetica, sans-serif]Genetics: Santa Maria x Lowryder
Type: f1 Hybrid
[/FONT]"This variety is now fully stable and auto-flowering."
I think the LR 1 is IBL but the LR#2 is not.