For the NCOER, should your notional leadership position match your actual MTOE position?

So I have always been taught that your principle duty title on the NCOER must match your MTOE position's title. For most of my current rating period, I have been doing my MTOE'd duties, but have also notionally been the "HQ PSG" for our HHC, to include keeping accountability of the DFAC, supply, and training room Soldiers and running the training room. I was recently told that since DA PAM 623-3 says "Enter principal duty title that matches the unit force management document or that most accurately reflects actual duties performed." it is possible to have HQ PSG put on my next NCOER as the principle duty title since "nobody is going to go back and check if it's an actual MTOE position.." I feel like my NCOER would better reflect my rating by keeping my MTOE position as principle duty title, and maybe mentioning HQ PSG under appointed duties or areas of special emphasis. What do you think?