I'm sure everyone who cared to think about it had some suspicions.
However, I also suspect that outside of the top 5-10 players (maybe 15), everyone else is getting paid a fairly standard wage.
I doubt singleton's wage is much more than he'd get elsewhere.... Especially when we consider what Sale probably paid for JCW, or what Bath paid for Stuart, or Bristol for Nathan.
The same probably goes for most squad players.
Yes, they'll all be riding the same wave that Saracens cheating has created, but they're probably not reaping the same financial rewards.
As for how do Saracens get below the cap when they get promoted, it's simple.
Kruis is leaving, Wigglesworth is probably off by then, Liam Williams has already gone.
They don't need much more before they've reduced their wage by the ~£1m they were done for