Spesh123;
Worry not. You can remove them when you please. Of course on a scale of which you can not measure easily, there is a difference. Basically, what you’re looking to do is simply spend your energy on what you’re keeping. Through veggitative growth, there is uncertainty as to what might make the screen. I remove that which I am confident wont (experience will teach you). Depending on the strain, you may spend the entire flowering cycle removing growth that continues to grow back, or becomes shaded. Your eyes will tune in over the course of a few cycles and your timing and knowledge of what and what not to remove will greatly improve.
* My wife and I just finished a few vape loads from our new and favorite jar we call Baskin Robbins. It’s a jar of kief mix from over 50 strains. I am in a very care free mood... "Ahhh it’s alright my friend, worry not, cut those branches when your good and ready, life is good, be happy" Comedy....LOL