Not that I saw him wrestle all the time in years past, but did watch most of the televised duals - always seemed to use some form of a double arm bar on his turns.
This year, I have even seen him get a Power Chicken Wing (free arm wrapped around opponent's mid-section locked onto opponent's wrist of the arm that is "Chicken Wing" barred) - you do not see this achieved at the NCAA level because it is a very difficult move to break once achieved (and is not "potentially dangerous" like a floating chicken wing). You can get pinned off a Power Chicken Wing as the control level is very high.
This year, I have even seen him get a Power Chicken Wing (free arm wrapped around opponent's mid-section locked onto opponent's wrist of the arm that is "Chicken Wing" barred) - you do not see this achieved at the NCAA level because it is a very difficult move to break once achieved (and is not "potentially dangerous" like a floating chicken wing). You can get pinned off a Power Chicken Wing as the control level is very high.