As written, it can be hard for the players to pick up on which regions each NPC is interested in, and they can spend time and actions trying to convince an NPC to bid on an area they don't want. Similarly, especially at low subtier, it is possible for the PCs not to complete sufficient discoveries to know the skills that can be used, leading them to waste actions rolling the wrong skill (since no matter how high the roll, if they select an invalid skill for that NPC, they get nothing beyond "that skill didn't work".)
Action economy in the influence mechanic is very tight, and at low subtier when it is much less likely to score +5 or +10 on a check, the players can easily lack important information. Based on my two runs, I recommend making the NPC's favored area something they can find out with roleplay or as bonus information from a discovery. Also, it is important to stress the importance of discoveries before attempting to influence in the early rounds, while pointing out that near the end getting every possibly influence point is key.
