O.K. I have to admit, I am completely lost. In what way is a crumpled up piece of paper analogous to a trackball. I guess if I crumpled up at least 4 sheets of 8 1/5 x 11, it might be similar in shape (somewhat round). It's weight, composition, texture, drag coefficient (which is what your ridiculous "analogy" was testing), moment of inertia (which is what we should be testing), are not similar in any respect. I can break it down mathematically in a few different ways to explain why using your whole body (including the surface area and length of your hand) instead of your thumbs, will produce greater "moment of inertia". The best example (and one that is more "analogous" than crumpled up paper), is whats called the "flywheel effect" or Polar moment of Inertia. Think of your arm as a lever and once in motion, will carry with it a stored energy. If we use Newtons 3rd law "something in motion will stay in motion unless an external force acts apon it" the stored energy in your arm (length of the lever-your arm, the distance it travels-how far you pull it back, it's velocity-how fast you move your arm) will be transfered to the ball. It is just not possible to produce the same kinetic energy from your thumbs as you can from your whole arm (unless you are Bruce Lee).
Even though I felt like a complete door knob, I went into the computer room and crumpled up a virgin sheet of standard letter paper, I set it on the kitchen counter and gave it the old MaxVolume flick. I marked it's spot and then gave it the old, I am a drunk, loud, obnoxious, red neck idiot, look at me testosterone throw (I think I actually did use the help of my own balls) and guess what, it went further.
Just bugging you Max, I don't care either way, I am a Shmups man you know. Don't use them fancy trackin balls