BEagle,
Mate, are you saying that BCPL knowledge is going to be required for NPPL instructors?
That is not going to work for your average wannabe NPPL instructor down the club. The BCPL knowledge level is around about a years part time study and that was for me coming from an A2 QGI background.
By all means put potential NPPL FIs through the PPL FI course but don't put the massive commercial knowledge requirement on them.
Vigi