It has become a VS/HS hybrid with the VS part having boosted motors (or chained.. I prefer to call it boosting since I feel "chained motors" sounds like all motors are spinning and they aren't). To be a complex spinner it would require spinner motors on the end of a spinning tribar (or any extender spinning radially).
To answer your question NFX, It wouldn't matter if they were HP zteks. It's the fact that the spinner motors have another mechanical device in their attachment chain that makes them spin faster, it might aswell have been a snapper or DDT or whatever. The tribars allready spin so fast they appear to be stationary.
Edit: Btw. The bot appears to be auto-self righting as a result of adding the third spinner, nice bonus!