Gold Mine Upgrade/ Dark Drill upgrade

I personally think the gold mine should become a new update maybe 5 more levels to increase production and upgrade bases a lot faster.

Also the Dark elixir drill's production rate should also be reconsidered as if you don't have the elixir to upgrade the dark drills you can't really gain any dark elixir unless you spend money on gems to boost it all the time which for people who can't spend money this becomes a real problem.

11 is a high lvl. If you want more gold (which is what SuperCell wants you to do) buy gems and boost everything for a lower price (new update) or just destroy plants and get some gems. No need to add lvl 17 goldmines....