Well, anything below 4 successes is a compromise for me, and anything below 6 may be less than ideal. I’m really interested now in trying out your idea of Tolerance being the total number of rolls you get.

The encounter system can feel too easy on the PCs. I’ve considered raising the difficulty above 14 when an NPC works against them. Probably add their Attribute level if they have relevant skills or traits. I’m definitely trying that next time.