Jim- on a complete tangent, but since you mentioned purple-heart... First off, that is one of the most carcinogenic woods on the planet to work, handle with extreme care. Remove any splinters right away, and don't breath the saw dust. It is however, very pretty stuff. You may already know this, but in a similar way that Cherry darkens with exposure to UV over time, Purple-heart will darken considerably with heat. I was amazed at the richness of color that a heat gun was able to bring out.