example of legit- fully sealed, same bubble
Do you have a pic of the back? Yours looks right for a number of reasons, but to keep it specific to the comparison between the Vectis one and yours, the one thing about the Toni cardbacks is the gradient on the racetrack isn't right. It's just something you pick up from looking at paper/print, the hue is off, I've always felt this to be one of the underlooked tells of these cardbacks. The other is an unexplained reason that Vader seemingly defies gravity. Looking at the Vectis auction, you wonder if that is just an incidental photography hangup (i.e. is it laying down flat when he's being photographed), which causes him not to drop with feet to the bottom?
On this old listing (FXToys one actually that was the basis of this thread) I saved the photos to show the same issue - is Vader is seemingly stuck because the blister isn't wide enough? Seems reminiscent of one of the tells used to flag TT Fetts', where the blister isn't deep enough to allow the figure to stand without a lean - in this case, it's the width of the blister that isn't allowing Vader to drop to the bottom.
Sorry, seeing yours in a miscard doing what it should, and I asked for a pic of the back because the Vecits one doesn't appear to have any blister impression at all on it. That' can be difficult to photograph unless you get the right angle, and get light to bounce off that area to see it's raised. The graded example below is for context (there's a few other pics from that auction I saved), but I can't seem to reconcile this and other observations to lean confidentially enough that the Vectis one is a legit miscard.