I am quite anal about marking wire location. EVERY wire on the harness whether it's controlled or GI is written on painters tape and attached to a wire(including multiple wires on a single location). I mark switch #'s per the manual also...overkill certainly, but i've yet to burn my house down😂 I usually install new bare wire everywhere also so marking is super important. And I also mark location on the playfield in case a wire falls off You took pictures, so your good to go!