Probably one of the questions I want the answer to most, but nobody is chipping in
. I’ve been looking into the FCOM and can’t find if we should add the delta-Vrefs or just take it as the biggest; either one could be logical(the bigger Vrer will be able to cover the handling changes derived from both problems or you need to add Vrefs to really manage both sets of problems.
Regarding question number 2, have you considered, or asked someone in your training dept about, the failure condition of FLAPS/SLATS FAULT IN CONF 0 that appears on the FCOM? As that seems to me to be the most appropriate response to your scenario