wen i top my plants i dont cut it right off, i just pinch off the new new groth, leaving 2 new leaves/heads. by the time these 2 new heads uptop are ready to start growing again the lower/out heads have caught up to about the same level. i generaly get 5 heads from one topping. ill take a pic in a few days of some new growth, its a fantastic way to give ur plants many more heads.