What do you use for plunge cutting mortises with a router; an up or down cut spiral router bit? I want to say a down cut but it seems counter intuitive as it will push all of the waste into the hole but on second hand it would eliminate tear out. What do you use?
-- "Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do... Explore, Dream, Discover” Mark Twain