I believe my strategy will be to stay in Gem mode majority of the time and just use profits from the Mines to upgrade when I can afford to. I don't plan on using coin mode for quite sometime at least not until i can cover rebuild costs.
Lets see how well you guys pay attention ... First person to post their legit strategy/ a mine photo and email me their DOGE address gets 30 Doge, 2nd person 15 Doge, 3rd person 5 Doge! Go hurry! 😄