Nice work! I have a fuzz/wah I built for a bandmate and keep putting different prototype fuzzes in it for her. I ended up installing headers & pins to make it easier to swap them out, I'm talking about these guys:
Angled and straight ones both have their uses. You can use them with the sockets or just pull the pins out to join boards. Nice to have the option of stacking boards on top of each other or joining them at 90 degrees.