Adjustment Notes

I adjusted the original pattern taking into account:

1. My head circumference is 24”
2. Mirasol Ushya gives me about 4 SPI w/ 5.5mm (US 9) DPNs.

Below are my final steps:

CO 4 stitches + an additional stitch for joining in the round.
Split across two DPNs and join in the round. 4 sts.
1st rnd: (Inc 1 st in next st.) Repeat 4 times. 8 sts. Divide sts across three DPNs. 3/3/2. Join in rnd.
2nd and alt rnds: Knit
3rd rnd: (Inc 1 st in next st.) Repeat 8 times. 16 sts.
5th rnd: (Inc 1 st into every 2nd st.) Repeat 8 times. 24 sts.
7th rnd: (Inc 1 st into every 3rd st.) Repeat 8 times. 32 sts.
9th rnd: (Inc 1 st into every 4th st.) Repeat 8 times. 40 sts.
11th rnd: (Inc 1 st into every 4th st.) Repeat 10 times. 50 sts.
13th rnd: (Inc 1 st into every 5th st.) Repeat 10 times. 60 sts.
15th rnd: (Inc 1 st into every 5th st.) Repeat 12 times. 72 sts.
17th rnd: (Inc 1 st into every 12th st.) Repeat 6 times. 78 sts.
18th rnd: Knit. As you knit, redistribute the stitches across four DPNs with needles 1-4 having the following number of stitches, respectively: 19, 20, 20, 19. NOTE: This distribution corresponds with the red lines displayed in the chart image included on this page. Ideally you do not want a colour change between two needles.
Next 4 rnds: Knit
Next 14 rnds: Work in chart
Next 3 rnds: Knit

Divide for Earflaps
Cast off 6 sts from needle 1.
Knit 20 sts onto a new needle. This needle should have 21 stitches on it in the end.
Cast off 26 sts.
Knit 21 sts onto a new needle.
Cast off remaining sts.

Follow the original directions for each ear flap until you get to the point where the RS is facing, and there are 9 stitches remaining, then do the following to complete the flap:

rnd 1: K, K3TOG, K, SSSK, K. 5st.
rnd 2: P5
rnd 3: K, K3TOG, K
rnd 4: P3
rnd 5: K3TOG. Fasten Off.