In 2020, Lamothe et al. [1] proposed a new protocol for determining the equivalent dose (De) of potassium feldspar grains (.). The Post-Isothermal IRSL (pIT) relies on an artificial mimic of the fad-ing by applying an annealing temperature before each measurement of both IR50 and IR225 signals, avoiding to measure the fading rate, and avoiding the bleaching issues of the PIR290 protocol. Here we compare the De or ages obtained with the pIT protocol, with those obtained with other protocols, including PIR290 on feldspar grains, SAR on quartz grains and independent age controls. We discuss the significance of a correlation between the pIT De and annealing times, and the relevance of using a third signal (e.g. IR150).