since the pergola is NOT visable from the backside we ran the wire up the backside of the center pillar and installed a J box on the backside of it. There are 2 transformers behind some bushes behind the pergola back to back on a 4x8 post. One is upb controlled and the other controlled by a unique sequencer. Its wired in a hub still altho some leads are shorter than others all fixtures came out to be within .3v of eachother (I checked all 5 out of curiosity) The hub for the pergola downlights are in the white j box and there is another hub just behind it for 5 uplit ligustrums to provide the backdrop. Burt and I spent about 2 hours using 1 hole zip ties and tucked the wire up as close as we could. Your right. The wire is there against the beam and header boards. We kept the wires as tight as we could against the top and when it dries and warms up a tad I will return to paint and patch as needed to make it look perfect. This is a rework and if you look in the bottom pic you can see where he had the old lights and they were pointing out about 45 degrees with 50w bulbs running at 7v more or less. If you dont have a place to hide the wire like I did you can get inside the hollow pillars and using bailing twine and a small fishing wieght drop the twine down and drill a hole near the bottom and pull it out with a hook then tape your wire to it and pull up. Sometimes it requires you to install a J box over your hole and sometimes you can patch it up. This is my 3rd structural install where I reworked someone elsed work. Alot of times just making the wires less visable and tight and clean is plenty to please the crowds.