continuation block/below the waist

[cowbyfan1]

I had someone try telling me that if an A player egages a defensive player high he can then slide down and cut the player, even if it ends up out of the free block zone or after the ball left the free block zone.. I do know if a player egages in front and if the defender turns and gets pushed in the back that it is a clean block but this one was totally new to me and to me not right.. Am I correct?

Also, did my first varsity WH last night and it went pretty well other than the coach arguing his guys can block like above and other than having a wing official that was pretty week (heard he was a good one so he may have had an off night).