Messing with the apical dominance either by topping or LST has always produced the best results for every strain I've grown. As long as your not topping to late in the process. I like doing it around day 20, just before they start showing sex or shortly after. I just bend over the little top until it pops. I'm not taking much off at all. A few MM's at most. The top side branches will be very very tiny doing it this way and the lowers will all catch up making it an even canopy in the end.