A bit more like it. I don't know what you mean by "regular volley" Cheetah, since the only difference between a topspin and slice volley is the direction of your racquet frame.
I'm scheduled to hit tonight, so I'm just hoping I'll have as much success with the shot as I used to, but if I'm not on and can't show it in video, I'll just have to find some other way to describe it.
If I can't explain it any better, the swing path is essentially that of a half-volley, but it's an actual volley, and there's maybe a little more topspin described.
Iirc, the topspin volley is also in the game "TopSpin".