EPOCH demonstrated that the head vertical plane may need to be increased for Q10.
Tests comparisons between P10 & Q10 on the R44 & R129 bench performed by BRITAX & DOREL : Q10 with no CRS has 770 mm – 790 mm vertical head excursion (actual limit is at 840 mm).
R129 required head position for booster cushion to be in range 770 mm – 910mm in static test.
CRS that place head above 840 mm will fail dynamic requirements.
Propose making dynamic head vertical limit requirement consistent with head position requirement.
Proposal : Increase the AD limit to 910 mm from Cr and cancel the DE limit or take into account the head excursion only the loading phase, up to a time of x ms (max head forward displacement).

Question from OICA : All presented tests was performed with ISOFIX connection between the test bench and the booster, could you test without the use of ISOFIX connection ?
BRITAX/ DOREL will perform new test without ISOFIX anchors in use
Question form European Commission : are you sure that there is no influence on the dummy kinematics & results from the deceleration sled & acceleration sled ?
TAKATA (Reiner NETT) will do test in their acceleration sled to check if there is still a vertical displacement of the dummy in rebound phase with Q10 in booster seat.