Thanks for considering this.
I think it would be the delay time between each of the screens, most importantly (Wifi -> TOS) (TOS -> ENROLLMENT). Exposing the values would be huge. Being able to tweak it during configuration to tailor it to the chromebook and how it is acting, would be invaluable.
I did also find that our enrollment password had an apostrophe in it, but when running it through the CENTIPEDE it didn’t actually produce an apostrophe, it added what seems like the HTML code for the symbol (').
Let me know if you need more details.
PS If possible the centipede script, itself, has a fair amount of variables that can be set, so having those as options in the configuration could be very helpful too.