Effective builder usage
Playing the game for around two years,I have always thought about this.Sometimes when we are in a rush to upgrade something and we don't have enough money to upgrade anything else once we upgrade that something,we get only one builder to work on it. Though it seems stupid to add more builders to one upgrade,I guess you could some how balance the cost and time so that we could add more builders to a single upgrade,specially when someone is upgrading their townhall usually there is only one builder building and if the person has maxed out on that townhall the other builders are sleeping.So my suggestion is that you somehow add builders to the same upgrade,and in turn reducing the time taken to upgrade or build something.
Hope this idea is clear to you
