Force-Destruct
[10] Knight
Except that 44K is neutral on block, forces crouch, and breaks guard at basically the same rate as 44B. If you're sure that your opponent will block, it's the superior option.
According to the Wiki, 44B breaks in 9 and 44K breaks in 10, though whereas 44K is faster and provides better options on block, 44B has better range and has TC properties at the beginning of the move. Each has their own use, but 44K is better in a neutral situation.