Having watched his videos, all of them, and shot nearly the same way for years, heres my HO. I anchor high, on my cheek, and shoot insticntively, ie, I look at what I am wanting to hit. The high anchor allows the arrow to be looking where I am. I have helped seveal guys transition to this, and 4H kids I coach, you dont have to change anything about your arrow/head setup. I change from field tips to broadheads and shoot the same, heck last year I even started using 3" feathers and actually got better flight, even with broadheads, especially in wind. You can get that anchor w split finger, just put the middle finger at the corner of your mouth, index should be on your cheekbone. You can move you nock up and down quiet a bit on the string without changing how your arrow flies, IF YOU have Good form, release. If not it shows up quick. Dont overthink this, you can tinker yourself silly trying to figure these things out sometimes.