@CONF iture
To have quietly autotrimmed 13 deg NU under those conditions has been a killer.
I share some of your views, but this statement seems a little strong, as it has been showed by BEA.3 that PF did use N/U SS inputs nearly all of the time for whatever (wrong) reason.
Means I would concur if he would have tried to overcome a NU trimm with N/D inputs...