I figure this layout is pretty close to perfect for my Town Hall Level 6. My resources are spread out, attackers will need to bypass multiple overlapping layers of defense if they want them all.
My town hall is covered by multiple layers of defense as well for any trophy hunters. And all my defenses overlap well with one another for protection.
My mortars and air defense being centralized force attackers to push through other defenses and walls first, and my clan castle being centrally located keeps those troops from being lured out.
What do you think?
Attachment 32606

