Update:

I contacted Tone and he's talking to them. I didn't get any retail packaging or official instructions since this is the prototype and the pictures I took of my install may be used in the real instructions. Instead I got a pressure gauge to verify the pressure readings and some pictures from the VX to know where the pressure tap and plug are located.

The line pressures I was reading are as follows which Tone thought was right on the money:

low 58-60
1/4 80
1/2 150
full 190

Today, I unplugged and checked the connectors to verify that none of the pins got pushed in and everything appeared okay (the Ax uses 4 pin connectors). I also increased the line pressure to half way which upshifted firmly but the downshifts were harsh. The unit is increasing the line pressure as advertised but I'm still throwing the P1860 code. I backed the pressure setting down a notch but I'm still not comfortable driving it too far from home since I often get caught in stop and go traffic.