Type B is more of the measurable aspects of ESP if such things were. Type A is more along the lines of feelings. They feel their way through the paranormal. Like a big ol' paranormal reciver depending on what sort of senses they have. Some Type A people sense danger. Some get things wrong all the time. (Like if you asked someone to choose the correct card in a 50/50 scenario, they'd always get it wrong.) Then there are those with uncannily good luck.

Type B are more classifiable abilities. Mediums, Seers, Clairvoyants, Dreamwalkers, Empaths, etc. 

Did that help clear it up a bit?