I've always loved Steve Gadd's shuffle. So simple, so smooth... so why can't I get mine to sound like his?
Here he uses his left foot to "chick" the 16ths on the HH instead of playing them with his right hand. I've seen him do it both ways and they have slightly different feel.
(The video quality is low, but the groove is oh so good!) https://youtu.be/H4ABE9gcKao