many things to factor in when deciding which method of training and when to train. normally i don't do any training for the first 4-5wks, and depending on how the plant is growing i would either top or lst after the 4-5wk time frame. if i plan on taking a cut and don't want to wait until the secondary nodes kick in or gets large enough to clone, then i would suggest topping. if i plan on vegging for a while than i'll lst.
you seem like you're very eager to learn and want to learn all the neat tricks while growing, but don't buy into a lot of what these dudes put out there on this board for newbies to grab and turn a good thing into a bad situation. don't believe me, look and you'll notice that about 80% of the post are always asking for help.
as a newbie, the best piece of info i can give you is to keep things as simple as possible. lsting, supercropping and topping will have it's time and place. try to learn and focus on how to feed and water properly and as your plants are growing take notice on how they are growing (structure) then apply what you feel is needed at that moment in time.
if you have any questions and i could be of assistance just shout me out.