So, I'm reading this pattern to make sure I understand it and might be able to do it but I have a question...

When you get to the armhole shaping, it says to decrease only at the beginning of the row at first...

Raglan Armhole Shaping Bind off 3 (4, 4, 4, 4) sts at beg of next 2 rows 34 (34, 36, 40, 42) sts. Dec 1 st each side every 3rd row 2 (2, 2, 0, 2) times as foll: when dec falls on RS row K1, k2tog, k to last 3 sts; end ssk, k1; when dec falls on WS row p1, p2tog, p to last 3 sts; end ssp, p1. Dec 1 st each side every other row 9 (9, 10, 14, 12) times, working only RS row dec above. Bind off rem 12 (12, 12, 12, 14) sts.

Won't that make this uneven? Don't I want it even on both sides? I don't understand.