Because there's risk and it already shows Spinks' willingness to fight the best, no tuneup or nothin, just coming off a loss fighting the main champion(in the people's eyes for beating Ouma) in the division. C'mon.. even Shane Mosley tried to fight Raul Marquez when he moved up after losing he didn't go straight for the DLH rematch did he now? Spinks just did something not many fighters if any, do anymore. As far as Mayweather on Spinks' level, how you know that? Is it because Judah beat Spinks and Floyd beat Judah? Why don't you think Spinks is on Floyd's level? btw as I've seen, in boxing you don't need to be on someone's level to beat them in my humble opinion.