I have a video called "ride like a pro" by a motor cop. really impressive stuff. It is a how to and highly recommend it. It has already improved my slow speed riding. The fun thing to watch is the cops wives riding on par with them. It also show proper technique for picking up a fallen bike.
I also have the Ride Like a Pro video and practiced what it preaches.
I found that with my old HD Electra Glide, ( although never as fast or agile as the motorcycle officer in the video ) I could keep it between the cones.
With my Vic Vision, I'm not as agile, I believe it to be a combination of longer wheel base and steering head geometry.
I do agree the fellow in the Video has the best riding skills I have ever seen