I got the defective new MP408 swapped out for an entire new unit and was sent to me the following day next day delivery. Very impressed.
I tried out the MaxiScope software on the MaxiSys Elite and found it a little more user friendly than the the PC based MaxiScope software. I try it first time and show settings of how I did a relative compression check without using any amp clamp using voltage set to AC coupled to get an awesome similar but inverse pattern of what you would see using an amp clamp.
https://www.youtube.com/watch?v=9-ORKeez_0c
If you want to check the AC ripple of a battery maintainer or battery charger, you can also set to AC couple at the scope settings in video.
https://www.youtube.com/watch?v=NAMmaDYXk0k