That reminds me of an amusing anecdote. Just last week I decided to attempt a personal top speed record, my previous one being 54.5 MPH. I climbed my hill (.6 miles long @ 11% grade) in 5:30, also a new personal record, and took a couple minutes at the top to just ride in circles to recover.

Once my heart rate had come back down from 201BPM, I got a running start and plunged over the edge of the drop off, still pedaling furiously. This particular road is two lanes each way, and I passed two cars that were in the lane to my left.

As I started nearing terminal velocity, I noted that the right-hand bend was coming up, so I was going to need to negotiate that, not to mention I was quickly bearing down on a pickup truck, so I'll have to take some action to avoid from hitting him.

Upon review of my computer data, I was traveling 58.0 MPH at this point in time, and much to my chagrin, I developed the death wobble. I've experienced it in the past on this particular bike, but only at speeds half of what I was doing now.

The adrenaline rush made it difficult to remember exactly what I did, but I remember instinctively clenching the handlebars, immediately realizing that this action made the shimmy worse, and loosened my grip. Next I clenched the top tube with my knees, noticibly deadening the shimmy, then started feathering on the rear brake. First thing I noticed was how pitiful the rear brake is at high speed, next I noticed I was getting uncomfortably close to the truck in front of me and I had now better start negotiating the sweeping right turn.

Thankfully, right about that time, the shimmy stopped and I was able to continue on my merry little way as if nothing had happened... except my legs were quivering with adrenaline now.