It’s great to meet another engineer! That’s why I like your communication style!
Sockets might be nice to have, but I have found them to be unreliable if you are going to be gigging or traveling much with this pedal. But if you really want them then make sure you get the kind that can accommodate short component legs…because the optocouplers that you made now have short legs after you cut them off during assembly. That’s really the only suggestions I have other than use caution when removing the components from the board. They are delicate and the traces and pads on PCB are somewhat delicate too.
Good luck!
-Brach