With regard to blackwood and other exotics being used here in the UK, several bagpipe makers I know now have stocks that they are afraid to use even though they may have been sat around for 50 years waiting to be used to make pipes because they can not produce paperwork to prove the stuff is pre CITES and as a result if they make pipes and they are then sent to or taken by pipers overseas there is a very large probability that they will be seized by customs at ports of entry. So most are now using pvc or Delrin instead and foregoing wood all together.