I have the ams1000 and love it, doesnt answer your questions but with the AMS you can call Seb and he will take care of you. I had an issue that turned out to be a wiring problem on my end. After talking to him on the phone about my issue he shipped a new controller out to me with no questions asked. Again it turned out to be my fault, afterwards it was no problem he just wanted to do whatever he could to get me running. I dont think you can find better support or service. I will never look at anything but an AMS again. The bullet is full of stories about Seb helping others out just like he did for me.