Why upside down on the socket racks? You trying to buck the system young man?
No, not bucking the system!

I had them on their side so they'd protrude out and that worked pretty well. But that's when the top was 24" wide and I had top space to spare. Now that I reduced it to 16" I needed all the space I could muster up. I tried pointing them upward but they went all catti-wampus and pointed in all directions. This works well practically and for the eyes!
All the tools on the peg board are tools that I use often, with the exception of the SAE wrenches (5 Kawasakis, 1 Honda and 1 Yamaha vs. 1 Harley). With this bike arrangement, the Metric stuff gets used almost every day.
Now for my next trick, and before I can move to the other wall, I have to figure out a way to secure my parts washer to the top of my rollaway while still being able to use the drain hole.
