CoC - Best Use of Gems in Town Hall 10

Being at 20% of development (maxed infernos and all x-bows in last update) I have discovered to not have any incentive to use gems for boost of barracks due to too high rate of gold accomulation.

The possible solutions could be:

• schedule highest gold rate consumption constructions
• minimize activity once in deposits there is less space then the pace of internal production till the next builder
• leave 1 builder almost always free and use the gold and elixir in time for making walls stronger, slower rate of growing
• do boosts the same, loosing the gold over 8.5 M cap
• instant building (about 250 gems for a day)

Any alternative to boost or few minutes/hours instant building has no sense. The huge amount of gems can be useful for:

• dark elixir farming (once deposits are close to be full or elixir first tier upgrades are over)
• cups hunting to reach champions league (in late town hall 10) and get 2000 gems