PPSSPP - How to set up local play with two (2) running instances

Posted with Dissidia 012 Final Fantasy in mind, but feel free to try this with any PSP game of your choice that supports multiplayer.

0) Enable built in pro ad hoc server in PPSSPP network settings
1) Launch your first PPSSPP instance, go to the game and then change the pro ad hoc ip to localhost (just type in "localhost" without spaces or quotes)
2) Launch your second PPSSPP instance from the same executable or shortcut, it should say "instance: 2" in brackets at the top of the emulation window.
3) With the second PPSSPP, untick the "enable built in pro ad hoc server" and type in localhost again to the ad hoc ip address field
4) You may have to adjust controller inputs to avoid synchronised inputs on both emulators. If both players send a match request at the same time, it will be nullified so be careful.
5) ???
6) At this point you could set up Eddienput scripts to playback fixed input sequences for training and experimentation purposes.
7) Profit?