Okay, so we agree then! :-)
"Also, the idea that where there is Solar light there is Solar wind is an error. The region blocked by the comet bow shock still has Solar light passing through it. Do not mistake the charged particles of the Solar wind which energized the ion tail with the photons of actual light."
Very true (see my point #4 from earlier). The solar wind-shadow should be a lot bigger than the visible light-shadow; photons are a lot harder to stop, in this case, than protons.
Cheers,
Nathan.