| Clue | Source | Date |
|---|---|---|
| Function very efficiently | ||
| *Put the pedal to the metal | LA Times Daily | 13 Jan 2022 |
| Be extremely successful | Wall Street Journal | 30 Oct 2017 |
| Make terrific progress | LA Times Daily | 13 Jun 2017 |
| Make terrific progress | The Washington Post | 13 Jun 2017 |
| Function very effectively in game with big pieces | The Telegraph Toughie | 09 Mar 2017 |
| Make terrific progress | ||
| Succeed like an artilleryman | ||
| Charge ahead | ||
| Be successful | ||
| Work at optimum |