man anything decent in rdwc in 4 gallons should get pretty large, depending on lighting, if you can grab clones, yes get casey LOL. that shit knocks it outta the park every time.
if you cant wait to hunt, try
sannie
hericules
kollosus
shack
all huge yielders.
JJ has his nigerian right now, i've seen pics of donkey dicks of that strain
all star has kiligria and king kong.
i mean really, anything could be a good yielder if trained right.... but as far as potency all those listen are winners, and are available here on the farm or sannies site
werd