Got a link to Al's process?
Go to the hydroponics forum & his threads will be the 1st threads you see , they are sticky threads & never move from the top of the list of threads .
If you follow his methods & don't over crowd your flood table you will hit 2 ounces per plant.
His process is simple flood n drain with a few specifics , well rooted large clones is where you start , you allow no side branching & you do not veg , not even for a day , you put 24 net potted clones per 4x4 table & feed them , not much more to it than that except people all ways try to do variations which hammers their harvest .
You also need to learn how to train mother plants to produce large 6 to 8 node clones & use new mothers every few grows .
If you read his threads from start to finish & make no changes to the method you will pull a lb every 2 weeks from a 4x4 table .