NOPE. YOU'LL NEVER ACHIEVE THIS ARMBAR IN COMPETITION.
Check out this tricky armbar from Black Belt Mario Roberto.* Now as you might realize some submissions are high percentage, others are ... let just say they work much better when beating up whitebelts in order to boost your confidence (my specialty).
* We think from Roberto's '08 DVD. Not sure how many of you have seen this though, and it's certainly new to us (only recently dropped on YouTube).