Okay, I'm panicking a little...I got some alpaca to knit my dad a v-neck vest. The yarn info says it's sport weight. Well, a US 3 needle seems to make too loose a fabric! Sure, Dad doesn't really like the handknit look, so the fine gauge would appeal to him, but that. would. take. so. long. AAAAHHH! Not only that, but I feel like the fine gauge would make for a rather different approach than the worsted weight I've done my couple of sweaters in. Maybe I'm wrong. But, for instance, the short rows to provide some shaping would have to be adjusted/increased. Help!
Can I get away with doubling this yarn? This scares me for the warmth factor and yardage. I have about 1900 yards to work with. Dad's chest is about 45", plus he's got a fair paunch, so I was going to add some short rows in the front to compensate, in addition to the short rows in back to raise the back of the sweater a bit. (Or are the short rows to raise the back unnecessary in a vest if you split the top into front and back anyway?)