Killigraphy
Banned
No.
Risk of dying is high for that kind of yo-yo dieting.
Then you will have the excess skin issue.
This dude only made it up to like 370 and still had all this excess skin left over to remind him everyday of what he used to look like. And he's got a couple of vids on his page showing how it looks when he works out as well.
With the billy, you'll get the operations and be set. Also homeboy lost it without working out. If you actually workout/train every day, and reduce the diet, your skin isn't going to hang at all.