[Clascomment] OPT-IN: Transverse Polarization of Sigma+(1189) in Photoproduction on a Hydrogen Target

[Lawrence Weinstein]

This is a clear and well-written paper.  I suggest two minor changes to the figures to make them more readable:

1) Figures 6-9: Since the polarization cannot exceed the range -1:1, I suggest that you change the graph limits to -1.49:+1.49 so that the label '1.50' does not appear.  You might want to add dashed lines at -1 and +1  

2) Fig 9: I found the labeling confusing.  I had to read it twice to figure out which symbols represented which reactions.  Have two separate labels for each panel.  One label should indicate the angular range as, e.g., -0.05 < cos(theta_K^CM) < 0.05 and the second label should indicate which data points refer to which charge mode, e.g., red dot: sigma+K_S  black triangle: sigma0K+