Today's magic question: can DoctorPadawan attempt to explain his own theory as to the origins of the OT Stormtroopers to the rest of the boards without them thinking him crazy for utilizing a Michael Keaton movie as one of his key points of support? Tune in to the next paragraph and find out!
Okay, here's my theory on the OT Stormtroopers, which isn't so much about them, but about "what happened to the Jango clones and why don't the Stormtroopers sound like Jango?"
In AOTC (23 years before ANH), we are first introduced to the cloning facilities on Kamino. The "ready" batch of Clones there had been created ten years prior to Obi-Wan landing there. As a result of the growth acceleration, these clones were approximately 20 years old, which basically makes clear that the clone growth rate is double that of a normal human. Okay, no problem so far. The Clones resemble a young Jango Fett in facial appearance, and are direct genetic replication of Jango.
In ROTS, when we see Cody without his helmet, he and many of the other clones standing around in the ship look like Jango (obviously, since Temeura Morrison played "them"). By this point, the Clones from AOTC would have aged another six years, making them 26 years old. I think you see where I'm going with this.
Come ANH, 33 years have passed since the creation of the first batch of Clones on Kamino. This would make the Clones that took part in the Battle of Geonosis 66 years of age, and most likely receiving the Empire's equivalent of SSI by the time Luke Skywalker leaves Tatooine. Even the last of Jango's 1st Gen Clones (those that were made from his DNA directly; this will be important in a minute) would be reaching their mid-50s by the time the Tantive IV is captured by Vader, so they would either be retired from field duty, or they would be in the upper echelons of the military command, overseeing things from a non-direct base of operations.
Now, everyone pretty much goes by the theory that the ST in the OT are a combination of Clones from other genetic templates and conscripts from the Academy we hear mentioned. What isn't addressed is why they became such horrible shots and only about a 10th as efficient as the Clones in the PT. And that's where Michael Keaton comes in.
In the movie "Multiplicity" (which many of you may have seen), Michael Keaton's character creates a clone of himself, which works out fairly well, but since it is a copy, it isn't as "good" as the original (Keaton). More clones are made, and one of the clones (the fifth one, I think) is basically functionally retarded because he is the clone of a clone of a clone of a clone of the original host. Try photocopying a fifth gen letter and it's not going to be all that clear.
So, I think that when Jango died, the genetics he left behind were pretty much tapped out by the end of the Clone Wars. The Emperor, wanting his mindless controllable army to be ready and having already conquered the galaxy, didn't put so much time into the genetics side of things, and probably just told Lama Su and the Kaminoans to go ahead and clone the first gen Clones, after all, what harm could it do?
So, as the 20 years between the end of the Clone Wars and the beginning of ANH passed, the Kaminoans had to keep cranking out copies of copies of copies of copies, which were naturally not going to be as good as the first gen copies or Jango Fett, for that matter. By the time we get to Tatooine in Episode IV, the Stormtroopers that are still Clones of Jango are probably a fifth gen copy of a copy of a copy of a copy, or a functionally retarded Michael Keaton, so to speak. Hence why they don't sound like Jango, hence why they can't shoot straight, hence why they are lucky they can walk in a straight line, and hence why the Jedi Mind Trick works so easily on these "military masters" when Obi-Wan tricks them in Mos Eisley.
And that, ladies and gentlemen, is my crackpot theory on the Clone = Stormtrooper debate. You can commence your laughter now.