Will, don't get me wrong and think that I'm saying you shouldn't use the shot, just not in a tournament setting. Play first for fun, you can get serious later. (I'm assuming you're a fairly new player.) Be inventive. It's a lot of fun having the ball score on something out of the ordinary. If you enjoy experimenting with new or unusual shots, go for it. Have fun.
I came to the conclusion a long time ago that foosball is for fun until you start playing in tournaments.
Then it's work. But I still have the most fun at tournaments.