maybe they could do with topping so they dont stretch and become bushier

just bend the top over or cut it off i prefer bending it as when it sorts itself out all the other branches have caught up if you know what i mean not long now till they start flowering maybe 3 weeks or if you want your weed sooner out them in darkness say at 7pm then wait till it gets dark outside then put them back out and then do the same thing for about a week then your buds will be better as they will be flowering under stronger sun as in a month when they do flower it will be dull and overcast now theres the occassional nice day so your cola's will be denser eg heavier yield