Thank you both for your insight. I was about to block my pieces but am actually working with Rowan fine milk cotton yarn so I'm guessing that there might not be much shaping that I can do if I were to block but please let me know if I am wrong. Are there any other techniques I could use to create the same "blocking" effect on cotton? Does it help to wash the garment's pieces before I sew everything together? The puckering isn't all that terrible and I'm thinking that if I don't pull too hard on the yarn while sewing the arms on, I might be ok. By the way, I 'm crocheting the sleeves on if that makes any difference. That said, I'd like to show you the pattern below in case you have any other suggestions for me. I've come so far on this project and would hate for my finishing techniques to ruin it! Also, here is a link to finished projects from the same pattern: http://www-backup.ravelry.com/patterns/library/dress-and-pants
Shape Top of Sleeve:
Bind off 4 sts at beg of next 2 rows (56) sts.
Work even for 2 rows.
Dec 1 st at each end of next row and foll 4th row, then every foll alt row until (38) sts rem, ending with WS facing for next row.
Next Row (WS) P7, p2tog times, p7. (26) sts.
Shape Armhole: (below are the instructions for the back of the armhole. They are the same, just reversed for the front of the armhole.)
Next row (RS) Bind off 4 sts, k to last 6 sts, [p1, k1] 3 tiems. (41) sts.
Cont to work in St st with rib border work 1 row, then shape as follows:
Dec 1 st at armhole edge on next row and every foll alt row until (35) sts rem.
Work even until armhole measures (5) in / (13) cm, ending at armhole edge.
Thank you so much!