Do they work on the plastic grind machine, or does it need modification?
dice stacks fit over hubstacks. yes, they fit
“Disclaimer: The PGM v2 (only) have a slightly different stack set up. The dice stacks may require a slight modification to work properly only on the PGM V2. It is a fix most folks can do themselves. It consists basically of sanding down the bottom a little bit for clearance.” ~ another yoyo store