On Mon, 9 Feb 2009 22:30:23 -0800 (PST), wrote:

I just put up white crown molding. I used angled (45 degree) scarf
joints where two pieces meet along a wall. I matched the joints very
carefully but slight differences in the elevation of the two sides
seem magnified. I've tried caulk, wood filler, and lots of paint, but
the joints still seem visible. Is there a trick I am missing?

Trick one- avoid if at all possible. Buying another 16 foot piece
of crown molding hurts when you do it- but the payback is forever.

#2 - If you must, scarf that joint at 30 degrees. [and don't buy your
molding at the borg or you'll never find 2 that match]

Jim