Near as I can tell Jet's "smartsand", Powermatic's "feed logic" and supermax's "intellisand" all do the same function of automatically slowing the in-feed rate of speed if you are taking too deep a cut.
I could see this severely damaging a project piece while going through the sander by cutting in a big deep gouge across the board.
Is this a common problem? The solution being to take lesser cuts, but is the sensitivity of the technologies function a common problem?