Apparently, the idea is to decouple the bell from the main body of the cymbal so you get more of the "ting" and less tail.
Why you'd want that, I don't know. The main thing I dislike about many of my cymbal samples is that the bell is too sharp and thin, like the difference between hitting it with the tip of the stick versus the side of the stick. I like a deeper, more cowbell-ish tone from the bell, but they're typically not sampled that way. Let me know if you run across something like that.