First off let me point out, I do not "buy" any gems..... I save them ...... every single one, until I have enough to buy a builder. Well, I just bought my final and last builder (#5). I am TH-8, thinking of going to TH-9 in a couple weeks.
So my Question now is, what is the best use of Gems at this point (since I have never really used any).
- Gems to boost Pumps/Mines?
- Gems to boost DE Drill?
- Gems to finish upgrades early?
- Gems to boost troop production (maybe for a day of raiding)?
Just looking for some feedback.
Thanks in advance!

