Top panels: light curves of the major parts of the bursts, left of the burst from 4U 0614+09 as measured in 6–50 keV with HETE-II-FREGATE (Kuulkers et al. 2010) and right from 2S 0918-549 as measured in 2–60 keV with the PCA (in’t Zand et al. 2011). In both bursts, the end of the photospheric expansion phase (the so-called touch-down point) occurs at 75 s, recognizable as a peak in the 6–50 keV flux for 4U 0614+09 and as a dip in the 2–60 keV flux for 2S 0918-549. Bottom panels: zoomed in light curves of the same bursts at 2 ms resolution, as measured with the PCA. These high-time-resolution measurements for 4U 0614+09 suffer from regular data gaps due to telemetry saturation. The drop at the end of 4U 0614+09 is due to the PCA being shut off after the high count rate safety threshold was exceeded. No dead time corrections were applied.