The RF-999MT spike bases look beautiful. They are much larger than the RF-900s, with a hybrid layer of cherry wood, metal, and Jacaranda wood finish, as pleasing to the eye as a multi-hued wooden sculpture. What they achieve reminds me of those paint-by-number kits I played with as a kid. Remember those first embarrassing attempts with the paintbrush and what happened after much practice, when you learned to fill in the colors without going outside the outlines? That's about the difference between the RF-900 and the RF-999MT.
$700 per set of four pieces. Two sets available.