Some plant's with extremely direct bud relation to strong apical growth are very bad to top. In some varieties of pure indicas you might as well grow it out, chop of the cola, throw it in the garbage because that's what the plants going to look like grown out "topped" it's not going to produce shit. I know you're not suppose to top chronic which isn't even pure indica, so you have to watch the general information and experiment. Anybody who's topped enough plants knows that "Uncle Ben's" topping technique is not a sure fire way to get the number of colas mentioned. You can top a plant and nature would have us think that the numbers of colas would follow some Fibonacci sequence in some kind of accordance to the number of side branches, but that's definitely not the case. It's pretty chaotic. Some plants bush out, some get a couple colas..