shown in fig7 an extension 210 extends outwardly from pawl 209 for permitting pawl 209 to move between an upward and a downward position pawl 209 may be spring loaded to favor one position or to click into both positions as stated above after a pocket 10 is set to a desired height setting mechanism 8 is then locked in place by lock mechanism 9 so that the pocket height is set after all pockets 10 are set they are moved to pass beneath at least one sheet material feed station 2 3 where for example sections 6 7 of a newspaper or other printed product are delivered into pocket 10 once pocket 10 is set to a desired height it typically cannot be adjusted to account for variations in the size of sections 6 7 being placed therein prior art devices have been created to adjust for such variations by only adjusting the level or location of the bottom of the pocket thereby raising or lowering section 6 7 placed therein from below however no prior art device has used an adjustment of grippers 53 55 to compensate for section 6 7 size variation as set forth above up until the invention there was a difficulty associated with separating forward lap 61 of a first section 6 from rearward lap 63 to create a pocket therebetween into which second section 7 can be inserted or nested the invention adds a new adjustment mechanism to grippers 53 55 fig8 and 10 diagrammatically illustrate a gripper adjusting system 70 a single adjustable gripper 71 of system 70 is depicted in fig8 to 10 for the sake of clarity nonetheless system 70 can be expanded to many or all of the grippers used to grip forward lap.