Don't forget to slide the shrink tube on the individual wires before crimping connections and the large one over all the wires.
Thank me later.
You can rest easy knowing you're not the only one! 
Boy do I know that one. When working at the Bumbling B, I had a job in the RH WW doing 24 or so moisture proof splices. When I submitted to QA, OK to close all I got was "CLOSE' what.
