My idea is having 2 mothers (wanna grow 2 diff strains) a 25 site cloner and one big flowering room where i'll grow the 2 different strains. 1 strain a month older than the other, so i harvest every month. Planning on doin 20 plants all total. flowering right out of the cloner. I have a 4ft. L 7ft. H 2 1/2ft. D. grow space, should i go for 2 tops or 4? Also would it be better to have less plants with 4 tops or more plants with 2 tops?