Can JMM be at a weight disadvantage even if he weighs more than Pac on fight night?

How can 135 be his best weight if he came in at 141 over three years ago and 145 against Katsidis? 135 is his weight class because that's the lowest weight he can effectively drain to and face the smallest fighters. He doesn't fight at 135. Pac's best weight is 148. PBF's is 150. That's their fighting weight not their best drained weight. JMM should be able to be more effective without having to drain. If there were same day weigh-ins JMM would not fight at 135. Because you train at a different weight throughout camp than you do for 144 , its changes the way your muscle density is distributed , at the higher weight his muscle is carrying more water that the same muscle carrys at his peak weight , peak weight is where all things are in harmony , your speed and strength are in balance for your own system , that is your perfect weight . Then if you go above or below it will effect either strength or speed , how much you can get away with then depends on your style and class and who your opponent is , most of the really top guys try to fight at that peak weight , but many that are chasing the big fights will say hey I can make that weight I want the big pay ,,,,, you get the picture . Not many trainers really know weight , I mean really know it , I think Freddie is the first to really manipulate fights at the scales on a regular basis , but then he has the fighter with a big enough profile to force it , its Roaches master stroke as a trainer , he made Manny what he is and it not because of Roach being a training god .

It's awesome cuz he's always dictating terms. And his opponents cave into his demands. Why the hell not? Throughout history in boxing, fighters and promoters have always exploited what they could for maximum benefit. Good for them if they can get away with it. Well... people act like they're putting a gun up to their head to say yes.... nobody is making them say yes.

Having to bulk up to welterweight already has him at a disadvantage. The weight class+age IS the disadvantage. It's the case with most of Pacquiao's recent fights. Cotto at 145. Pac fans: It's not a big deal, Cotto weighed in at 146 against Clottey. So why the catchweight? Same with Marquez. Pacfans: "They will both weigh around the same on fight night anyway". So why the 145-pound catchweight, why not 140 if you're both coming in the same weight on fight night anyway? Team Pacquiao/Roach/Arum, understand the importance of catchweights for the PED King. How are you on PED's already, and you need all of these catchweights and handicap matches? Aren't the undetectable PED's good enough?

Him weighing in more is a bigger disadvantage to him IMO.... he might be heavier but that's not good for him

Yes he can be disadvantaged , because the more bulk above his best weight of 135 that JMM carries the slower he will be , having more power but being slower is not going to give a counter puncher an advantage it will give him a handicap . How can 135 be his best weight if he came in at 141 over three years ago and 145 against Katsidis? 135 is his weight class because that's the lowest weight he can effectively drain to and face the smallest fighters. He doesn't fight at 135. Pac's best weight is 148. PBF's is 150. That's their fighting weight not their best drained weight. JMM should be able to be more effective without having to drain. If there were same day weigh-ins JMM would not fight at 135.

Yes he can be disadvantaged , because the more bulk above his best weight of 135 that JMM carries the slower he will be , having more power but being slower is not going to give a counter puncher an advantage it will give him a handicap .