No, No, No, Brace height is even more important in Traditional Archery. You will find that by twisting your string you can adjust your brac height. As you will read in your book, brace height, cant, arrow selection and length will all help to tune your bow properly.

For now though, I would just "mess around shooting your bow for a while". Things like keeping the arrow on the rest and form will be the most important things when you begin.