Here's where I changed the L/E a little. The plans have you butt join the L/E at the center, I changed this to a scarf joint as it's a little stronger and easier to make a perfect joint. The L/E is sanded down so its flush with the opposite L/E and then using a razor plane, the excess stock is removed from the top and bottom and then sanded flush with the sheeting. The other L/E is glued in place and the same process is repeated. The end result is perfect.