3 pounds...
um..
unlikely..

BUT possible,,, especially if he works in the shop and has access to all the extras..

I have witnessed 5lbs(dry) in 11-12 weeks from 2,200 watts in a 4x6 room.
There were about 40 plants 18-24 inches tall. (started as rooted clones)
Aeroponic setup.

ask him if I can come over..
please..
thanks

: )