J3 Jack Screw Inspection Criteria?

[Steve2618G]

Seeking a bit more clarification on the Jack Screw inspection criteria. I've heard it said any vertical movement (play) at the leading edge of horizontal stabilizer is criteria for replacement. Is it common for only a very small area of the jack screw to exhibit any play over the course of travel? I appreciate any comments.

 

[johnandchadj3]

 

[bob turner]

 

[Steve2618G]

 

[Cub579]

 

[JimC]