I don't know about Stones but a lot of these live streams the commentators are seeing the action and commentating on a delay as well (15 to 30 minutes on average) so the question is who internally is helping him?

You can make some great bets or calls based on opponents but it only goes so far and you're bound to be wrong in huge pots stationing off, or having your bluff picked off. It don't matter how elite of a player you are nobody is this spot on so much.

If he's rarely playing non-broadcasted games or playing lower stakes as mentioned then that is very telling too.

I'm not in the mood to look at this but their is a website link below that I found from a quick search that sells various cheating devices so if anyone wants to look on there to come up with possibilities as to what he could be doing then here:

https://www.cardslenses.com/

The buzzer on the leg/ankle thing mentioned seems like a strong possibility.