We comment on a recent paper by Wieser {ital et al.} [Phys. Rev. C {bold 54}, 1930 (1996)]. The authors have performed a single-energy analysis of {pi}{sup +}p scattering data at 68.3 MeV, finding a value for the S{sub 31} phase shift about 1{sup o} smaller than found in the Karlsruhe-Helsinki partial-wave analysis. The authors use this result to argue for a dispersion relation analysis using recently measured data, so that their effect on the {pi}NN coupling constant (f{sup 2}) and {Sigma} amplitude can be determined. We note that these tasks were accomplished prior to the submission of the above paper. We clarify the effect of this analyzing power data on f{sup 2} and the {Sigma} amplitude. {copyright} {ital 1997} {ital The American Physical Society}