Shane coming on late will give Floyd more chances to counter. have you ever seen Floyd get tired? When's the last time you've seen Floyd get tired in the ring? Just because another fighter hasn't been able to come on late in a fight against Floyd doesn't mean Floyd doesn't have another gear.
Know why the fighters get tired? Because they go through about 6 or 7 rounds of expending their energy trying to hit Floyd and can't and Floyd has great conditioning and can come on late. Floyd comes on late in a fight too, ask Corrales. After about the 5th or 6th round Floyd begins to pick it up. So if Shane comes on late in a fight he'll just be matched by Floyd, because Floyd comes on late in the fight too. The thing is Shane is going to be the one spending more energy in the early rounds. So it won't be a nightmare for Floyd. Judging how Shane looked against Mayorga I'd be more worried about how much Shane will have left. If he got tagged all night by Mayorga and had issues with those telegraphed punches, then Floyd will be a NIGHTMARE for him. Margarito is slow, Mayorga has a little bit of speed and caught Mosley. So I have a hard time seeing how Mosley is gonna deal with Floyd's speed.
You brought up a point where you said Floyd has trouble with jabs, he really doesn't, everyone points to the Oscar fight but they neglect that the reason Oscar stopped using the jab was because Floyd started countering it and even hurt him with a straight right. So Floyd has shown he has an answer for the jab.
However Shane never has. Shane doesn't have an answer for the jab he has never shown one and Mayweather has a good jab too, to the body and to the head. So you should be more worried about Shane not having an answer for the jab as opposed to Mayweather.
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