LVL 12 Elixir and Gold Collectors!
These new collectors can have a maximum capacity of 200,000 of resource type. The elixir collector instead of having only two tubes above the collector, it should have ALL tubes above the collector, so the elixir can produce faster. And with the gold collector, instead of having only one role of the machinery ( the one above) it should have two roles. And more spikes. The 12th lvl would be unlocked at TH 9 ( or if you think it would be better with TH 10 it would be fine too). The cost of the resource collectors (according to how they do it in the game) would be 336,000. And it would make 3,500 per hour. ( 500 more than lvl 11) and the hit points would be 900. You decide. Its a good idea!