rutalkingtome 说:
according to the manual, for Party Skill, the effect will be based on whoever has the highest rating + some bonus of your rating. So it's ok to pump some points to NPC's party skill like Wound Treatment etc. and your own of course, if yours is lower than the highest rating from any NPC. having more than 1 npc with high ratings on the same party skill is a waste. it's also a waste if you have the highest rating.
Trainer skill is probably different. Everyone contributes. And for leader skills, I think only your leader skills matter, NPC's leader skills are not a factor at all.
I am not sure that it's always a waste. The non-wounded party member with the highest level of a redundant skill is the usual provider of that skill to the party, so anyone with the same or less amount of that skill is not using it most of the time. But say I get wounded, and so does every companion but one, and that companion has First Aid skill because I made sure everyone had it. Suddenly his First Aid helps me and the other companions. Only having one surgeon, for another example, would be a bad idea because if they get wounded, or if they are just not present at that particular battle, my army is out of luck.
And if I'm the tactical leader and surgeon but get wounded and have to send my army to fight without me, won't my army do better in battle and have fewer casualties if one of my non-wounded companions has tactical and surgical skill? I'm pretty sure this is how it works, at least I hope it is how it works or I have wasted many, many a skill point. Just from observation I'd say it does work this way.