And at any rate just going and deleting stuff without consulting people is not a good idea.
No no, not in the SVN of course, I just meant in my game. I like my settings to be as conducive to AI doing well as possible. If I stuff anything up - fixing it is just a drag-overwrite away

per 5 slave specialist (not including free ones). If you think about it your civ's citizens really wouldn't enjoy becoming slaves (formerly farmers or miners). Perhaps instead of the penalty there should be a growth penalty?
per slave specialist is pretty overpowered too. You could just reduce slave specialist by 1 hammer and allow the caste benefit to give an additional +1 hammer instead?