I think the mechanics of the swing is still the same (I favor a uniform swing -- makes it at least easier for me). With a chip however, you feet are together -- keeps your swing from getting too wide -- and then you're club head doesn't come all the way to a full down position at the strike -- it's still back a little. Then, you're essentially popping it. Your "pop" stays the same on different lengths from the pin but your swing arc goes wider for more distance. This works very well for me. I generally do this from 30 yds in, else I go back to a pitch. At this point, I'm still learning to get the swing down for different distances but it's just a matter of time before it all comes together. Hope this helps.