I love MDF its the main thing i cut, don't care much about the toxic stuff i used to smoke and i drive a car so am spreading toxic fumes all the time lol, its cheap and so easy to get in various thicknesses, am limited on the real wood i can get and i only cut things from scrap or reclaimed wood, sorry but i find it hard to drive by a skip full of timber going to land fill, up scaling instead of land fill is my option and i love turning a scrap bit of wood into a portrait of a dog or person or what ever comes to mind
cheers Gordon