Tobi-wan_Kenobi Why have you decided to decompartmentalize? Will those corridors not lead to crew wasting time walking long distances? Of course that will be fixed in 0.14.5 with the new crew behaviors.
Connecting compartments can help modules share energy and increase energy supply by sharing reactors. It doesn't work the best, but well enough to have some advantages. It's become pretty popular recently and I thought it wouldn't hurt to try.
Tobi-wan_Kenobi I also want to point out something that I think would benefit you: if you place your lateral thrusters closer to the center of mass (move them forward about 6 tiles) you can get much more lateral velocity.
I am aware, I mostly place my engines on a back "rack" to give myself more flexibility when developing the actual cannon modules. I have a new cannon wall I've been developing with Saris that has the thrust layout of the Nautilus with the cannon modules of my the Catfish.