What BusaFever, Pure Ego, WWJD, and Diesel said
I found that if you're a smooth in your transition from side to side, and don't upset the bars, then the bike is very stable during the switchbacks. Practice hanging off by doing it on turns that you know well, but don't need to hang off on. Don't try to rail it at first...just go through the motions and get used to where your body needs to be. Once you're comfortable getting into position, then start practicing switching from side to side during a switchback, but at a slower speed. Shift your body position using your legs and not your arms. You should be bringing the bike upright from one direction as you move your body to the opposite side. As you settle into position, this is when you will apply pressure to the inside bar to coutersteer through the turn. All of this needs to be one smooth transition, and it will take a LOT of practice.
When I'm done with a track day, the balls of my feet hurt like hell from all the pushing on the pegs, and my legs are sore for about two days. Dam, I need to work out more.
I know you don't want to work on your suspension, but it does make a world of difference. The stock settings are WAY to soft. Contact JINKSTER with your height and wieght and he will give you a good setup.
Here's a few pics from my last track day. My body position isn't perfect, but it's a helluva lot better than my first track day.
Good Luck...It'll come with practice.
Dam, I wish they would let us pass on the outside
I'm 39 years old, and my Mom saw this one and said...
"That far enough"
BTW...This is while traveling at about 100 mph...