No, don't snort it. I don't know why Beach is obsessed with snorting molly, but I don't recommend it. I've never tried it, but I also don't want to. .2 is a pretty fat dose. Take half of it if possible, you can always stack later by taking the second half after the first half kicks in. That'll extend the length of your roll and it'll ensure you don't become too uncomfortable.
Or, you can do what Beachbum does at raves (which I think is genius) and pour the second half into a water bottle. Then you can sip on the water while you rave and you'll keep going for a while.