Hi,
Yes the nrpn is peculiar ... I just finished a v0 Ctrlr panel for NTS-1 mkII (
SITE) the scaling of parameter from 14 to 10 bits is not always the same (see source) it depends if the parameter is the first 2 or 3 basic one or the next supplementary.
I also have a problem for an oscillator whose sound is distorted if filter is THRU ... (s101 oscillator at the same page)