Both are professional and there is no way no i can see Conor missing weigh for a fight worth so much much, whether you like or dislike him he will make weight....... but even then i cant even see him being 10 pounds over weigh this close to fight day either.
Mayweather will just out box Conor, i cant see him doing anything stupid and risking getting knocked out, but i also cant see Mayweather knocking Conor out, so if i was putting money on the fight id be taking the $3.75 on offer fro Mayweather Points or Decision.