The (a) near-side and (b) away-side yield differences vs \ptassoc for \pttrigrange{20}{40} full jets of 30-50\% centrality in \PbPb collisions. The narrower band corresponds to the background uncertainty, which is non-trivially correlated point-to-point . The wider bands are the systematic uncertainties coming from the shape uncertainty of the acceptance correction. There is an additional 5\% global scale uncertainty. Points are displaced for visibility. Data are compared to calculations from JEWEL  with and without recoil particles