I'm not sure about bartering power, but I agree that Manny should at least have enough power to keep the fight 143 or under.. He's a warrior though, and unfortunately he may end up taking the fight at 147 if Mayweather sticks to his guns even reasonably stubbornly... And unfortunately that would be a big disadvantage for Pac.. Floyd has the type of body that can get down to 147 for weigh in, but he'll come in much bigger than that, without losing any speed or being drained in any way... Where as Pac just won't put on that much weight, and will be dominated just in size alone...

In a way, generally the basics of negotiation say that the person who is most prepared to walk away has the most bartering power..... And Floyd will say that he can take any fight out there and unless he has it all his own way, he'll happily go and fight someone else who is a lesser threat, and will feel perfectly fine about it... Pac being the true warrior that he is will want to take on the biggest challenge he can, and may end up fighting Mayweathers fight before the Anthems have even been sung... I hope that doesn't happen, as I think both these fighters have paid their dues, and the paramaters of the fight should at the very least be split straight down the middle so it's even when they step in the ring, and natural fighting ability is the main thing that plays into the result.....

Hopefully Bob Arum wants to do right by his main man, and will actually be prepared to walk away if Pac is going to get completely stiffed.. EVEN if it is meaning fight fans all over the world are going to miss out on one of the match ups of the decade.... That's where Floyd's has the upper hand.. He can walk away from that type of matchup...