Both. And supercrop. Top 'em, pull em apart and tie 'em so all the shoots have vertical space to grow and then pinch/supercrop to keep all tops at an even height.
Toppers hate LST cause it's too damn much work. LSTers hate ScrOG cause it's too damn much work. ScrOGers hate topping cause it's too damn much work...
That's a joke, right?