I recently bought a teak didge and having played mostly agave or yucca didges coated with envirotex i was really surprised by the volume it put out. The soft fiber didges i own all have a much lower volume output with the trade-off of making vocals more pronounced. I know there are a couple players who have coated the insides with pipe stone or some other clay material. I'm thinking about using something called artplaster which is apparently dimensionally stable (won't shrink) and is denser and harder than plaster of paris hilton (who thought something could be more dense). cheap stuff to pick up, its like 7 bucks for 5 lbs of the stuff which i spose for the 7-8 foot yuccas i make would take maybe two boxes max to coat the inside.
thoughts anybody?