A strain with slow stem growth - like Jack The Ripper - grown in a peat mix will not stretch much in flower and you will get little bud. A strain like Kali Mist in hydro will litterally give you a 3' budcycle from a 3" clone.
3 Kali Mist in the back right (from 1 1/2" - 3" in veg to 30", 32" and 33") - Recycled Deep Water Culture: air pumps and a sump pump for sprayers. The tall spear on the left is Taiga, Big Laughing in front of the Taiga.
"nice bit of dry bud every 2 weeks" That's how I do it. I cut and plant five every two weeks. Two good moms can supply over one hundred clones in two weeks.
too many variables to answer. A large clone of a strain that does decent flower-phase growing (some can triple in size in flower) can produce quite a lot. Then again, not necessarily more than something you grow from seed. For sog I usually hear people say they are getting 1/2-1oz per plant.