Hi guys, I have the feeling this move is standard for most MS regs, but to be honest I don't really see why.

When you 4-bet AQ at 16bb and vilain shoves, you have 37% equity against this shoving range {99+, AQs+, A5s, AQo+},  but you need 42% (84bb/200bb).

Also AQ is playing very well in a 3b pot IP.

On the other hand when vilain is calling your 4-bet you're in a good position with AQ, but is it worth it ?

Thanks !