I began small with a sleeve to check the gauge, which should have been off terribly, but in reality, it's fine. One small unintentional pattern modification with a twist on the twisted stitch pattern was born early, and an executive decision was made to let it be - all the way throughout the sweater as if it were an intended consequence of thought.
The pattern calls for wool and my Nantucket will be in cotton, Classic Elite Provence. Who in the world would want a short-sleeved wool sweater? Or at least in California I see no need for that. I will add an extra inch at the waist to lengthen the sweater just a bit. Cotton alone will, from what I've read, lengthen it in time (although I did make a blue cotton sweater and I notice no appreciable lengthening of that sweater).