I'd use LST more so then HST supercropping. but if your lacking space and can't use LST, give it a shot. whats the worse that can happen. diminished yields? not the end of the world.
Good Luck!
Once it's done early. It does cause a boat load of stress. So, if its avoidable. Unless you have past experience with the strain (and even then, autos can't be predicted)
But, once it's done before or latest a few days into pre flower.
Good Growing