I've found a problem with the Preen's NRPN dumps violating its ranges.
Bank 3, Patch 2 ("Resolead  MB").  When loaded, OM Index 1 is 18.0 and Index 2 is 25.0.  This sends NRPN values of 1800 and 2500 respectively, outside the 0...1600 range specified.  This causes two problems:
1. You can't use the knobs on the machine to go to 18 or 25.  So you can *load* this patch but you cannot *create* it (!?)
2. It's not clear what the upper limit is over NRPN.  What should a patch editor do?  Should I bound it to 0...1600?  Then if I send it back, it's a different sound.