Thanks Guys, I am re-trimming my entire home and thought I would save a little money using MDF. All the trim will be custom, hoping to add some value to the home as my wife and start considering down-sizing, housing market being what it is. I am going with Craftsman style and wainscoting throughout.
Box store trim won't cut it, #2 pine is a pain in the arse, with knots and warping, and clear pine is twice the price of molding. Since all will be painted, figured I"d give it a shot.
Will try all suggestions given, though I really hope scraping with the bit fails!! The thought of scraping several hundred feet of molding by hand is giving me a headache.