I'm working on a sweater for myself and have come to the point of making the sleeves. The pattern calls for knitting them on DPNs which I am not that comfortable with. (I've already tried and ended up frogging it).
What I want to know is, can I knit the sleeves flat and seam them up? If so, do I need to add a salvage stitch to each end of the sleeve when I cast on?
Here is the first part of the pattern.

Twisted Rib
Worked back and forth:
Row 1: [K1 tbl, p1] to end.
Row 2: [K1, p1 tbl] to end.
Repeat these 2 rows for Twisted Rib

Waffle Stitch
Worked back and forth, beginning with a RS row:
Rows 1 & 2: [K2, p2] to end.
Rows 3 & 4: K all sts.
Repeat these four rows for Waffle Stitch.

Sleeves (Make 2)
Using double-point needles, CO 48[56, 60, 64, 64, 68, 72, 72, 76] sts.
Join to begin working in the round, being careful not to twist. After a few rounds have been worked, place safety pin or split ring marker in work to indicate beginning of round.

Work in Twisted Rib until work measures 2 inches.

Work 2 rounds in Waffle Stitch.

Increase Round: Work first st, m1, work in patt to last st, m1, work last st.
Work 6[8, 8, 8, 8, 8, 8, 7, 7] rounds in Waffle Stitch.
Repeat these 7[9, 9, 9, 9, 9, 9, 8, 8] rounds 18[14, 14, 14, 15, 15, 15, 18, 18] times more, then work Increase Round once more. 88[88, 92, 96, 98, 102, 106, 112, 116] sts.

Continue in patt until work measures 17.5[18.5, 18.5, 19, 19, 19.5, 19.5, 20, 20] inches, or desired length to underarm.

Shape Sleeve Cap
Next Round: BO 6[7, 8, 10, 11, 7, 8, 8, 8] sts, work in patt to end.

Note: From this point, sleeve cap is worked back and forth.

Thanks