I do everything to all of my plants, I have a buba kush mother I'm keeping, that so far has been topped/supercropped/FIM'd/ as well as lst'D
Its always kind of fun to mess around with them a bit and see what you prefer. Alot of it comes down to size restricive type situations.
I def recommend Lst when topping because in my experience the main shoots fly upwards unless trained to be even with your canopy. Lst everything, it's worth the extra work