Great stuff Lester!
Seems to show the tail fairly clearly to just past Furud (Zeta Canis Majoris), or 26 degrees. After that vague hints or nothing (see attachment).
I shot it too - lot harder to get a trace than last time I tried. Shows the same thing as yours, though not as clearly (26 degrees). Also like yours, there's a hint out further but not enough to say one way or the other.
Cheers -