I was made an instructor by prem and he did the knowledge review for all of us.
No extra light or special ways to do it. His pressure was firm but not as much pressure as padarthanand did in the knowledge session. But by this time I am sure everyone knew that pressure was bad on the eyes so he adjusted accordingly.
I can guarantee you that there was absolutely NOTHING special about prem doing the techniques. And in fact, I felt a sense of let down about this.
But of course it must have been my fault. Maybe I wasn't brainwashed enough at the time.