I want to go from breadboard to a prototype board for my Raspberry Pi project and I wanted to get some advice on my approach. Here is a Fritzing image of my diagram. This is the first time I've put one together, so there's probably something wrong with the diagram, but the actual breadboard/cobbler/Pi combination works.
I plan on soldering male headers to the Pi Zero and a female header to the prototype board. To wire the connections between the MCP3008 and the corresponding GPIO pins on the female header, I planned to connect the pad next to the needed GPIO header with some solder and then solder a wire to that pad. I would repeat that same process for the MCP3008 to complete the connection. Does that sound right?
Also, based on the diagram, could I connect a ground line on the other side of the cobbler to the ground on the breadboard so I wouldn't have run ground connections across the MCP3008? I think the answer is yes, I haven't touched this thing in months since I got it to work. Since I am completely new to this, I hesitate to mess with what works.