Sometimes you just have to do things the hard way. Or at least I do. I was thinking over different ways to arrange the 5 gate(simple inverter) and P gate(buffer) to possibly arrive at the XOR and XNOR gates. Then is struck me. Why the heck am I building buffers?!?! You stick a 0 in, you get a 0. Duh.

I just built a Max gate using nothing but two diodes. I guess I'll have to test the 8 two-input gates I already built and re-do the schematics replacing all the P gates with diodes. That sure does make things easier in the long run.

I guess I was just so busy patting myself on the back that I totally bypassed the obvious ;)