Centerforce aor any diaphram style clutch will stick to the floor while power shifting.
Just happened to a friend of mine. He says he always shifted and drove it hard with no problems. We had a BBQ with all of our Mopar friends and many were doing burnouts in the street. He just watched and didn't want to "tear up" his car.
When he leaves, he can't help but punch it in 1st gear, then hit second. Guess what? Pedal stayed on the floor when he lifted his foot and at the same time the gas pedal got pushed in hard. I yelled "Chevy Clutch"