I was speaking of his play
prior to his heads-up play "call" there were 5-9 players left and he was relatively shortstacked....
You even called his frequent all-ins suspect.
So you are correct, it is for pushing all-in, on an unraised pot.
10 BB is the number... Learn it.
Got it from a pretty well known player...
In fact I am 100% certain you have watched him win a rather large entry event on television
.