I was talking about the "pain train" server. It obviously allows demomen and I have no issue with that since there's the "rocket launcher" server in case I don't wan't them. Class switching is not map related, but the respawn bug is, the fact that you can't reproduce it doesn't mean it isn't there, else I wouldn't have reported it. Tell me of any bugs in ctf_bball2. It's only by changing map that problems arise: as far as I know ctf_bball2 is perfect.
A nice addition to the server would be a whitelist that allows no unlockables, now that I think of it.
Don't worry so much, that's just a problem that can be resolved. I was talking about classlimit plugin. As far as I know, changing map will not change player ability to change class repeatedly and spawn faster.
Bball2 isn't perfect at all, basket allows players to spam and kill easily. Also it has strong limitation in height what makes a huge difference while playing. These things just don't allow players to evolve.
I wrote an email to ctf_ballin map creator, who knows - maybe he can sort something out.