Here's how the measurements stack up:
Front Length: 25
Back Length: 29
Front Length: 27
Back Length: 31
While the chest and bottom widths don't differ significantly (or at all), the lengths differ consistently by two inches. I need to decide if that length is enough to get me to return the plaid. If I don't, I'll have to wear it with the sleeves rolled up or as a layering piece, which I might be OK with in the end.