After reading the instruction pamphlet, I measured, cut and stripped the jumper wires. I decided I wanted to solder these first, before soldering the DIP sockets -- mainly because this board is really tight and I wanted the extra space to work. I ordered a few more ZIFF sockets, which I'll be installing on this PCB as I did with the Apple II keyboard interface. Having a "quick disconnect" from the motherboard is a luxury, but it is worth the extra few dollars it costs to install a ZIFF socket. Unfortunately, I won't have them for several weeks due to a backup in the postal system.