I have the same question.
I have the Vision one.
They sell it seperetly on websites.
The stainless steel sensiTone Comes with Pearls
Better than the standard ones on the Vision snare (obviously.)
The one on the website is also 1.5 inches deeper than the vision snare.
But the vision snare is awesome to me.
Looks like Pearl
has 2 different styles or "series" of SensiTone. The Superhoop version and the Vision one.