Put to use as soon as possible. Because it is the simplest. Bomb itself was easy. If the store is not to exceed the rate of 10c a decisive blow in the 7700 meters per second.
To use it, as soon as possible because it's the easy-to-blow itself, it is easy to do if you will keep it strictly C rate more than 10 bombs in the 7700 meters per วิฯ