I've been setting up my demo board for my AC-50. The controller I am using is a Curtis 1238 96 volt 550 amp controller. I got the basics setup and finally got the motor to actually turn but not like I was expecting. The motor is cogging when I throttle up. But I at least have power and movement and no codes. Next will be setting up the computer to talk with the controller. I may need to do something to get the motor to work with the AC-50. It is not a matched set so some auto configuration may been required. I was looking for an older Curtis Manual from Curtis and also from HPEVS. I want both. If anyone has a controller manual for the older models I would love to have one. I'll be getting pics and video soon. I had a 64 VW Bug delivered today. It needs work but it is a decent base. I may have to do a weld patch on a couple spots but it is mostly for a beater EV. My other one will be restored so it will be a nice looking one. I just want a driver.