Checked up yesterday & the FI is in fact a Ground/Reval Examiner.
Tailwheel issue also resolved as was. NPPL legally requires differences training & logbook signoff. JAA PPL does not, it's a SEP, the pilot should be intelligent enough to find out where the wheels are.
Lurker 06
Check with CFI but all the instructors are Examiners as above, CFI is the only Flight Examiner (GST etc).
Go & have a word.