Why not just 720 right after the 5A, instead of using 5A Voltic Charge into 720? Unless, if you are using the Voltic Charge to prevent yourself from jump canceling the 5A during a block string. If that is the case, I would do something like 63214A78963214D7896C. Keep 5A's block stun in mind. It may end up purple throwing because you are technically special canceling into 720, after a move that is very plus on block.