I changed that some time ago in the skills file: 
https://github.com/EQEmu/Server/blob.../skills.h#L151
Someone had marked it 75 when the max was 74..we're up to 77 now with RoF2.
One reason I don't like giving too much power to scripting... 
One reason I don't like hard-coding values into code or scripts... 
EDIT:
I do have an unimplemented fix for that... 
https://github.com/EQEmu/Server/blob.../skills.h#L127
But, it would behoove us to set up some perl tokens like KLS did in lua: 
https://github.com/EQEmu/Server/blob...eral.cpp#L1756
(That's for inventory..guess we need some skill defs there too...)