I've read somewhere that the rock/jazz switch switches between two different tonestacks (I don't know whether this is right or not. I have absolutely no idea about electronics in an amp).
The Jazz setting isn't very usable for my style, so I wanted to ask you whether it's possible to change the jazz tonestack?
For example to a bluesmaster type tonestack.

Would that be like switching between a bluesmaster and a skyliner then? Or would it just sound different but not like a bluesmaster (for example)?
I think that would be a really cool thing since nearly nobody seems to use the jazzsetting.