"The primary issue experienced with the Jester Pro (and the Jester for that matter) is a loosening of the toe piece. After a season of hard charging or a big fall, the toe piece has a tendency develop a slight wobble forward and backward. This issue is easily resolved by adding a few clicks of forward pressure. If the wobble is substantial, Marker will warranty the binding if it is within a year old!"
source:
http://unofficialnetworks.com/marker-jester-pro-unofficial-gear-review-91917/
Is this what you are referring to?