Oh well, here's a 'baseline' obs. Quite reasonable skies tonight, NELM about 6, so had a go with 4.5" f8 reflector at 43x and 113x, the lower power just to be certain I was in the right spot. Z CMa was quite easy to find - the little nest of stars nearby make it snap.
So.... nothing there! It's difficult trying to make out a feature like this because the light from stars does funny things to your eyes. In staring at it for so long I saw, at times, little jets in just about every direction possible! But a simple 'control' test was to go to a similar mag star, and the same effects were observed. Further, there was nothing you could hold.
I suspect this may be very difficult visually, even for larger apertures. Most info I've seen points to the jet (and at times jets, eg 2008) being strong in the near-infrared.
Next please, let's work up through the apertures until someone can see it!
(On a better note, I finally saw the Homonculus through my scope at 112x - only one tiny golden lobe could be held in direct vision, but averted vision worked, kinda! Satisfied that this is not in any way a small scope target, so I wouldn't recommend anyone with a small scope like mine to bother - I won't again. At high powers through a bigger scope it is awesome).
Cheers -