before you go over to ali place, stop by in and out and eat a 8 by 8, large fries and a 20oz drink. Stop by dell taco and get a 1pound burrito, maybe 9 more tacos ( 3 for 1 deal )....then before going to the bathroom, weight in. After the weight in, as Ali to use the bathroom.
60 later, make sure not to eat anything and splush out your system and then go to Ali.
I guarantee you would get about 5 pound head start.