Picked up the Blue Gene colorway Stark from East Dane's sale last week (sale + free returns). I'm quite surprised that a Large was pretty much perfect. I opt for Medium in most US marketed things and Large in some Irish sweaters and after all I've ever read on this thread, I was expecting to have to go XL at the least. Turns out L is solid, if slightly fitted (in a good way). Length is solid - sleeves are perfect for my monkey arms and torso length...maybe a bit long, but not problematically so. Regardless, I'm quite happy and wish I had bit the bullet sooner.
what's your height/weight/body type?