Attached masking tape to the leading/trailing edges of the right skin (already
glued to the structure), glued (with CA) narrow spruce sticks to the masking
tape, to provide pressure rails and to protect the skin from the clamps when
pressing the left skin. Similarly, attached masking tape and sticks to the left
skin's leading/trailing edges.
Varnished the left skin and the fore/aft spars' shear webs with laminating epoxy + red color pigment. Mixed some cotton-cab mixture and glued the left skin to the structure. Pressed (bar clamps and spring clamps) the skin down via the sticks on the leading/trailing edges. To avoid accidental twists from resting on uneven supports (clamps), stood the fin vertically on the spars.