When i get the T upgrade i would be done with all my stat increases... so i could advance to spy. What happens to the skills i didnt choose? I feel i ask this every time i get xp but keep forgetting it.
Some rules:
1: you don't have to complete a career (defined as taking all skills and stat upgrades) before changing career, except where there is an obvious progression involved (such as wizard's apprentice => wizard, or mercenary => mercenary sergeant). You do have to complete your starting career though.
2: however, you do need the opportunity to change to the new career. This depends entirely on what it is: Max had to complete his degree in order to become a lawyer, and Admund did actually have to become a sergeant before he was allowed to take the mercenary sergeant career. Some careers, on the other hand, you can just start as you like - such as Klaus becoming a charlatan.
This is why Ragni hasn't changed career, despite having 700 spare EXP. And also I didn't want him to massively outclass everyone else at fighting!
3: it costs 100 EXP to change career.
4: if you change career without completing the current one, you can't take any skills or upgrades you missed, unless the new careers has them. Or unless I allow it for some reason.
Re: Klaus becoming a spy - I think you'd need a patron in order to be a spy. You aren't a spy unless you're spying
for someone.
Admund is going to Advance his BS, and then use the last 100 to complete his career, and advance to Mercenary Sergeant!
Good! He should do that.
I'll supply you with the new advance scheme.
Since I can only choose fellowship or leadership at this point, I have chosen leadership, and raised it by ten points.
OK!
Hmmm, I'm not sure what career Heinrich could do next. He can be a witch hunter if he likes, since he has in fact been hunting witches. Klaus could take that career too.
A career doesn't always have to be one of your listed options. Opportunity is more important.
The career rules are extremely vague in WFRP v1!