Quote Originally Posted by junkielectric
A whizzer grip is like a very strong overhook, with your fist shoved up past their armpit. A lot of people like doing uchi mata off of it, because you can put a ton of twist into the throw. I also like doing tai otoshi or a sideways harai with it, especially off of the uchi mata.
Also, the whizzer uchimata is a great counter to a single leg or duck under. Hold the arm, and when they go for it wrap your arm around theirs and twist into the uchimata.
I've also been playing with an osoto gari on the trapped arm side if they try to pull back. I'm having a hard time picturing it against a double leg shot though.