Well, I'm not so expert about all this materia, and maybe I didn't read all previous posts so accurately, but, about succeeding to made a "safe" NORH race only modifying Stunts internal code, I have two questions.
1) If someone will succeed to "hide" or "cancel" the "continue driving" menuitem, how will it be anyway possible to know if a *.RPL is made with a original Stunts version or a modified Stunts version?
2) Assumpting that the modified Stunts version "writes" in the file *.RPL a character or a string, marking it in a way it could be identified (maybe with a new version of InfoRPL) as a replay made without RH, won't be possible for a expert coder, editing a file *.RPL made with RH, so to insert posteriorly the character or the string so to make it a file *.RPL that seems made without RH?