[Mike AA]

I honestly think that you could simplify your wiring and lose some weight if you moved the din rail closer to the radio and got rid of the stud and crimps. Thus causing one less location for something to come loose. Or better yet use the Negative posts on the smaller breaker panel. Or, I'm not sure if its required to use the din rail but you could totally eliminate the din rail and run the negative to the stud and the positives through the maxi-block.

Just a thought. I dont plan to use additional items.

-Mike