Okay, so just finished plumbing for an additional meth injector. I'm still running the CM10, but I added a second slightly smaller injector. As you can see in the picture, I installed a control valve to the second meth injector. This way I can test it on the single CM10 on back to back runs, and then open the valve and see the difference (if any) that the second injector coming on line will make.
Today I removed the intake pipe and individually test fired them just to make sure the spray pattern was sufficient. I was concerned the the CM10 was too far recessed into the bung. Turns out the spray pattern is fine.