I found this on the web site of the company that manufactures the bags used on the JJ rests.
"Those of you who compete in the NBRSA will be receiving your copy of the rule changes soon. There are a couple of rule changes for 2017. The change we found most intriguing was that the requirement of being able to lift your fore end freely from the front rest has been removed."
I wonder if this will affect our air rifle rules as well.