[font=Verdana,Arial,Helvetica]"U just use 3/4"X3" boards to connect them?"[/font]
Depends on what you use for the silhouettes. The lighter silhouettes are generally less tough, while heavier material takes larger connection/float boards. I've had delamination[font=Verdana,Arial,Helvetica] [/font]issues this year with a few sillies. But I used as light a ply as available, and got away with the 3/4" X 3" connection boards. If I make them again I may use a double layer of FRB (fiberglass reinforced panel) to keep them light but very tough.
Scott