Its LST and all i Did was wait for the 4th node of leaves to start then i put a screw in my pot. the i just used twisty ties on the plant and used fish line to tie the twisty's down. As for "topping" it was accidental but beneficial. all you do is cut the top upcomming leaves. Look up "Growing Marijuana Topping" in google and "growing Marijuana LST" thats where i learned all my stuff. Pays to do research =D
-Swisha