I was starting to put Snatch & Grab in my Personal Evolution lists, then decided Cerebral Cast was a strict upgrade on it: almost always less expensive, doesn't require a money lead, both options are bad for the runner. Losing the psi game is the only downside. I was actually teching against Film Critic but trashing Wyldside obviously makes sense, too.
I don't think Cast is a bad idea at all, but there are probably better tech choices available to most corp decks. I got wrecked this weekend by someone running Elizabeth Mills out of ETF. The other Jinteki cerebral, Static, may help more against the dominant Faust runners (Whizzard, Noise, MaxX).