Putting the wingtips on and giving it all a rough sand. My favorite sanding block. A piece of 3/4" counter top with a full sheet of 80grit or 60grit stuck to it. Nice for that carving project or anytime you have to knock down a block or stick in a hurry. I even use it for rough sanding on sheeting and my leading edges, trailing edges.

I glued a block of balsa to the wingtip and cut off the excess with a razor saw. Use the cut piece on the other wing tip. Sand with 80grit or 60grit and round it up just a bit. Leading edges are still flat on the front and no real roundness to them yet. I save the final sanding for after I'm completely done and nothing left to do but cover it. I find that parts and pieces get banged up in the shop and doing a final sand right away leaves you with a dented leading edge come covering time.

Leave the bulk of it on for now and just get a rough shape to it. Sand out all the hanger/building rash just before you heat up the covering irons. [8D]