I think he has proven their genetics as winners, i would buy f1's from them, and i don't even buy seeds anymore.
How many of us are currently running either seeds or clones from f1 seeds? Cause i know i am...
And pretty sure we have some members here who have more experience than just reading a book.... Most of the grows shown in this section have at least one locally bred f1 in them, ie the infamous Italian Chocolate.
I prefer f1's in most cases, gives me a chance to select what i want from a strain rather than what the breeder wanted me to want.