Here is a copy of the email response I got from CS regarding using the Dyno for 8T motors;
thank you for your interest in our products.
There are no different versions of Powercheck, only the software is updated, actual PC-Software version is 1.5. (You can update from our download pages in the web)
For testing motors with 10 turns and less we recommend to use two battery packs in parallel for testing, because these motors are taking so high current while accelerating. We never tested motors with less than 7 turns, because this is the practical limit and we learned, that we get a lot of problems using this motors (i.e. difficult gear ratio, overload of the transmission, lots of heat in the cars from batteries, motor speedo and wiring) Fortunately we now have a motorlimit of 10 turns for Off Road and 12 turns for On Road.
Have fun with CS products.
Mit freundlichen Grüßen / Best Regards / Have a nice day / CU / ;-))
Christian Sterr, CS-electronic, http://www.cs-electronic.com