The biggest and most difficult task for your lower body is supporting your upper body, leaving it free to steer the motorcycle. The clip-ons are for steering only, and any additional input-either from bumps or just holding yourself up-will upset the chassis. Ideally you want to support yourself by gripping the tank with your legs and using your trunk muscles, to the point that you have no weight on your arms-even when you are tucked in on a straight or hanging off in mid corner. The benefit here is twofold: The weight of your arms and upper body is not affecting steering, leaving you free to make minor corrections. And, in the opposite sense, if your arms are relaxed and loose they will not have a tendency to add unwanted inputs into the front end that can upset the often delicate balance of steering geometry and result in bump deflections being amplified to the point that a "tankslapper" (where the steering whips back and forth violently) results.