Nice reply Brian, and we are going to get you to FIM next grow! Lol.
Congrats on your top🔝 you did it nice and early so that’s an upside.
One thing not mentioned yet that should be is that your growing environment has alot to do with the success of your autos. Your medium has alot to do with the success of your auto and the methods you use to train it.
If your in soil the best thing for an auto is to LST it (low stress train) because soil takes alot of time and energy from the plant to extract nutrients and grow through the roots, also a reason why 30% perlite is minimal what your soil to perlite ratio should be. Cannabis like airey mediums. A FIM can also be done but you should know how to grow and have a dialed in environment before you fim your plant in order to avoid stunting it, it can totally be done with good results though.
Now if your in coco you have more flexibility because your plants will grow with more vigor, this is when you can top,fim, SCOG, mainline etc
Overall I do suggest a FIM rather than a top. Topping is a high stress method and it give you two main colas where as if a FIM is done correctly then it is a medium to high stress method but you produce 4 main colas (risk vs reward). A good fim will help your plant produce growth hormone due to the stress you caused it and will grow big and strong.
The camp of people that say don’t do anything to an auto but lst either don’t grow autos, haven’t grown quality auto genetics or don’t have a quality setup/ arnt good growers lol.