[Ranylyn]

To clarify and break it down:

- Shooting when you have a charged shot readied will consume that charge.
- Thunder Drive will only grant you Overcharge if you are presently charged.
- You need to shoot before you can crit. The shot itself consumes the charge.
- As you cannot crit before you shoot, Spark Drive will only give you another charge.

Safety is 100% -required- to get ANY use out of thunder drive at all.