Brief Description: Form Skin for rudder trailing edge
First you have to clamp the edge together paying paticular attention to the ends and edges. I started at the ends then the middle, then the half way middle, etc. . . . I used two of the little spring clamps to get started then C-Clamps. Just make sure it is straight and secure.
Then I tried to press it down by hand, but had no control. Pulled out some 3/4" MDF and tried pressing by hand, no control but it is closer to the table.
Added C-clamps and some bricks to hold things still. Slowly I turned each clamp 1 full turn till the MDF rested on the stops