for which radiative corrections were either turned on or off for comparison. This was done with the program [Heracles]{} [@cpc:69:155] interfaced to the hadronisation programs within the program [Djangoh]{}[@proc:hera:1991:1419]. However, the two collaborations did not use the [Heracles]{} program with exactly the same options. The ZEUS collaboration only corrected for LO initial- and final-state radiation of the electron. The H1 collaboration included the effects of quark radiation and $Z$ self-energy [@H1allhQ2] [^4]. The difference introduced by these extra contributions is, however, always less than 1% [@Bardin:89]. The H1 collaboration published [@H1allhQ2] a cross-check with the programs [Hector]{} [@Hector] and EPRC [@Spiesberger:95] and concluded that the uncertainties are below 2% in all of the phase space. In addition, the effect of the exchange of two or more photons between the electron and the quarks, which was not implemented in [Heracles]{}, was found to be negligible. The H1 collaboration included phase-space-dependent uncertainties in the uncorrelated uncertainties of their published cross sections. The ZEUS collaboration did not assign any uncertainties to their QED corrections. As a cross-check, an extra uncertainty of the size assigned by H1 was also added to the uncorrelated uncertainties on the ZEUS cross sections for polarised beams. In all 