Hello, I wanted to let you know that I tried your base. Some added mods like a fall pit and rounded corners (which unfortunatly those conners cannot be plated),and I didnt have time to line the pit with spikes. And I only had cobblestones. It survived a day 98 horde night. However, even with zombie block damage at 25% a plated and non plated block fell at the main tower lower forward corner. I think without concrete and 100% damage I might have been in peril. I did have some wasted time due to a personal error which may have allowed the Zs more time to beat on the tower. I have a few changes to make to try and keep the Zs from the main tower, or atleast less attention upon it.
The headshot corridor did work flawlessly, except for a worker did manage to make the jump heh. He died quickly so no biggie.
The dogs could not negotiate the corridor so they beat on the bigger of the wedges and lost one. Again w/o concrete and 100% damage I think i would have lost both, and the ensuing bottleneck would have cost more damage to the tower.
Overall I like the design and just need to plate more hehe, and make some concrete

. Need one mroe point to be able to craft the mixer, so almost there.
Perhaps you can test your design with full horde night day 100 or later and see if it fairs better than mine.
Thanks for the idea.
Regads,