the question is do you want a main cola the size of your arm or do you want 20 half the size of your arm. sure the main cola can be the biggest and most potent but if you top the plant it will branch out more and then you will get a bigger yield. also when you take that top clone the fucker and flower it to see if you have male or female and by the time that you know your other plant will be ready to flower or chop.