  The process $\ee \to \W^+\W^- \to \f_1 \fbar_2 \, \f_3 \fbar_4$ contains
charges in the initial, intermediate and final stages. This gives a rich
selection of possible QED interconnection effects. Coulomb interaction is the
simplest of these, and can thus be used to explore consequences. We study a
number of experimental observables, with emphasis on those related to the W
momentum distribution. Second-order Coulomb effects are shown to be practically
negligible. The limited LEP~2 statistics will not allow detailed tests, so any
theory uncertainty will be reflected in the systematic error on the W mass.
Currently the uncertainty from this source may be as high as 20~MeV.
