Observations from the hard state of 2006–2010 (MJD 53 900–55 375, Grinberg et al. 2013) that do not require a disk. Left: normalized histograms (blue) and normalized cumulative histograms (red) for N_H above the ISM value for individual orbital phase bins; n denotes the total number of observations in a given orbital phase bin. We note that the phase bin φ_orb = 0.7 − 0.8 contains one measurement in excess of 10²³ cm^-2. Right: orbital dependence of N_H. The best fit focussed wind model introduced in Sect. 4.1.2 is shown in green.