retraining Highland Clansmen? What is the point?

[Stazi]

How do you get that much of a valor upgrade for Highland Clansmen? Don't they only benefit from the province bonus and Master Swordsmith building? Maybe your comments didn't apply to HC?

I'm sorry. Yes, you're right. It's not about HC, just a general example how it works.

Unless you assassinate him first, the commander's vices don't go away with retraining. Why would they not continue to be applicable after retraining the unit?

Again, you're right. Vices don't go away but they are applied the moment commander's get them. After that they stay with commander as nothing else but a text info. I'm not sure if all v&v work that way but valour modifiers certainly do. You can easily spot it in game.