Torowa, one of japan's best Yosuke has about an hour long set of matches. If you wanna see some high level stuff watch it http://www.youtube.com/watch?v=x7vFebGAIks
(Note: I'll soon take the time to update the video thread properly)
I tend to use this risky gimmick a lot after landing Tent, implying they don't guess correctly. it adds up to about 5k damage total (including Garu). But it's highly situational (depending on how smart they are, I guess?)
It's just an option.