Followers learning limits

I'm trying to figure out how far some followers can learn in technological disciplins or magic schools they chose, and I would appreciate some help from more experienced players. Can I eventually get some feather weight chain mail from Magnus? Can Jayna learn to make revitalizer or wonder drug? Should I expect Jeoffrey to start casting quench life on my enemies? Well I wouldn't really want that, but does anyone know what is the maximum limit for tech and magic folowers?

 

I played to level 40 before restarting due to a bug and I have not seen any of my tech followers get to the highest level in their tech. They seem to choose 2 techs and only go about half way up. But since I didn't get them to level 50, I can't guarantee that they don't max in the end.

 

Tech followers learn only four schematics in their disciplines. I don't know how far magick followers get. You can edit level-up schemes if you want to - instructions are at Terra-Arcanum. If you consider it cheating however forget I said it.

 

While the techies only learn the first 4 schmatics, some mages will go all the way. But while the have it, I have never seen Gefferoy cast Quench Life, Z'an cast Tempus Fugit, Or Jormund cast Disintergrate.