After years of exposure to the harsh, outdoor elements, traditional shutters absorb mosture as well as swell and contract at the joints cauing them to deform and crack.
I had always had my trim carpenter or a local shop build my shutters. Having built homes for over 30 years, we have seen every possible issue with shutters looking great today and having to redo them five to ten times later. I have been so impressed with Signature's shutters. I use the one piece board and batten on my own personal house.