Thank you for your in-depth review! Happy to serve a connoisseur ;)
The double tapping was new to me. It could easily be added to the game. Of course the changes of the camera will make it more difficult (so many times I clicked the wrong square when the camera moved sideways for the tanks....), but I guess that's just part of the game. Starting the timer on the first click is obvious now that you mention it! Also an easy fix!
Now, 14 seconds is REALLY impressive!!! Great work getting that time! :D