I know this is intended for traditional group play but what do think should be modified for solitaire play using one single character? Also, can you explain the Stat Scores above 12? I guess a +3 mod is only for point assignment & doesn't apply to rolling 2d6.
Stat score above 12 is for NPCs, they should use the same rules for throws as Playing Characters As for solo play, there’s no problem at all, all you need is an Oracle (I usually go for Ray Otus’ The Oracle or Graven Utterance’s Recluse). Then you roll a single character and adjust challenge level accordingly (i.e. a single foe instead of a squad, etc.)