What happens is the wood looses the pulp over time. This gives it great acoustic values.Logs that have been underwater since the days of logging old trees using rivers and lakes to move them are being retrieved solely for the acoustic values and sold to music companies for tens of thousands of dollars after drying because they no longer have pulp.
DW did a series year ago called Timeless Timber and the drums were constructed of very old logs dredged up from Lake Erie, I think. The DW marketing machine had a field day with these drums, and as might be expected, they sounded great and were very pricey.
John Good at DW is a total wood maven. He's obsessed with wood and its properties, and he's always working to produce drums with exotic and beautiful timbers. He travels all over the world obtaining wood and I'm sure, he knows more about wood and drums than any human being I know.