Cut Block? Shotgun Formation

[BoBo]

How do you guys handle the cut block or block below the waist when the offense is in the shotgun formation.

Obviously it will depend on the QB position or depth on the snap. For the majority of the time I will guess he is at least 4 yards deep. Thus the ball is leaving the free blocking zone.

We have gone about it that if the offensive lineman cuts/blocks immediately then we allow it. If any hesitation we throw the flag.

Once we see it the first time as the R I go to the offensive huddle and remind the lineman it must be done immediatley if not it is a flag.

Umpires or Refs any comments or suggestions?