Hey!
Engineering is basically about having a base that will give you advantageous mismatches.
(More: http://forum.supercell.net/showthrea...-FAQ-and-HOWTO)
But setting one up is hard if you've got some high rated buildings.
Therefore, you should be able to get rid of them.
Downgrading a building will take 50% of either time and cost.
When doing it on a lvl1-building, it will disappear.
I'd appreciate any thoughts on this idea! ;)
