i know how autos work but could not tell you how they react in a grow space. Making clones from regular plants and flowering them asap is the best option for quality and quantity and space saving. you could have several plants 8 to15 in the pc growbox at the same time in little 4 inch square pots. but you need a fast flowering indica or indica dominant strain to achieve the best results. The faster the better! M-39 is a fast indica but it"s probably gona be hard to get seeds! And remember never make clones from feminized seeds (unless you like hermie issues)!!! If you already knew that? sorry but I have to add it to the post!