It's just for speed from a southpaw stance. That's all.
The majority of sparring partners aren't there to mimic the opponent, they are there for putting in work, going rounds, preparation and in this case getting Floyd accustomed to fighting lefties.
Yeah. I edited my original post almost immediately after remembering he was Southpaw. But you were too quick on the draw. Lol.
Good move. He's still got fast hands and he's still a good technician so it should help him to a small extent.
He doesn't fight like Pacquiao, but if you're trying to find partners that not only can mimic Pacquiao, but most imporantly not get annihilated in sparring by Mayweather you are gonna be searching till the ends of time.